Not waking up - Nexus 10 Q&A, Help & Troubleshooting

My Nexus 10 is on stock Android 4.4.2 (from OTA updates) - build KOT49H. During the last couple of weeks I've frequently been unable to wake it - when I press the power button sometimes I get a small vibration, but the screen doesn't turn on. I have to long-press the power button and then it reboots. This is now happening every other day. Has anyone else come across this?

itm said:
My Nexus 10 is on stock Android 4.4.2 (from OTA updates) - build KOT49H. During the last couple of weeks I've frequently been unable to wake it - when I press the power button sometimes I get a small vibration, but the screen doesn't turn on. I have to long-press the power button and then it reboots. This is now happening every other day. Has anyone else come across this?
Click to expand...
Click to collapse
It sounds like a kernel issue. If you are unlocked with a custom recovery, Which as most devices go very easy on the 10... If it were mine i would just try a new kernel.. Here is one that is based on stock and would work for the stock AOSP Rom...But like I said you need to be unlocked and have a custom recovery...
http://forum.xda-developers.com/showthread.php?t=2318891

lj50036 said:
It sounds like a kernel issue. If you are unlocked with a custom recovery, Which as most devices go very easy on the 10... If it were mine i would just try a new kernel.. Here is one that is based on stock and would work for the stock AOSP Rom...But like I said you need to be unlocked and have a custom recovery...
http://forum.xda-developers.com/showthread.php?t=2318891
Click to expand...
Click to collapse
Thanks for the reply. I don't have a custom recovery - was hoping to keep this device "clean" by just going with OTA updates. Any idea how the kernel problem might have been introduced?

itm said:
Thanks for the reply. I don't have a custom recovery - was hoping to keep this device "clean" by just going with OTA updates. Any idea how the kernel problem might have been introduced?
Click to expand...
Click to collapse
No I have not had any issues and have not read of any, You can always do a factory rest...Start there for sure....

Hi,
I agree with @lj50036. A factory reset is always a good try. You can do it with a toolkit or manually. If you want to do manually just tell me and I send the instructions.
~Lord
"This Story Ends Where It Began"
Sent from my monstrous Xperia Z1

XxLordxX said:
Hi,
I agree with @lj50036. A factory reset is always a good try. You can do it with a toolkit or manually. If you want to do manually just tell me and I send the instructions.
Click to expand...
Click to collapse
Would appreciate instructions - particularly for restoring apps and data after the reset. I've tried Helium (I'm not rooted) and there are a bunch of apps which it flags as "backup disallowed" for some reason....

itm said:
Would appreciate instructions - particularly for restoring apps and data after the reset. I've tried Helium (I'm not rooted) and there are a bunch of apps which it flags as "backup disallowed" for some reason....
Click to expand...
Click to collapse
Hi,
First I need you to download adb and fastboot, you can get them from here: http://www.undergroundandroid.com/developers/sidgrafix/adb.rar
Then you will extract it and open a cmd in this folder. Go to your tablet now, open settings, go to About Tablet and click Build Number many times, until you unlock Developer Options, then you will go to this new tab and turn it on, also turn on Android Debugging. Now, with this done, plug your tablet to your computer and check if adb can find it with:
Code:
adb devices
If it found it we can continue, if not, check if you really selected android debugging, and make sure the cable is well plugged and your.drivers are installed.
To backup your apps, you'll type:
Code:
adb backup -apk -all
This will backup your apps and its data, now you provably will want to backup your device. If we're going to completely flash Stock Rom it would be good. You know how to backup your device I belive... Just Crt+C and Crt+V haha.
Now after your backup is done it's time to flash the firmware! Type in the cmd:
Code:
adb reboot bootloader
Now download the ROM from this site: http://developers.google.com/android/nexus/images. After you download it you'll extract and get a folder with flash-all.bat, a zip package and some more things. You'll copy the contents from the adb folder to it.
If you still didn't unlock your bootloader (it'll completely wipe your data!), it is time to do it now. If you already unlocked skip this step. Type in the cmd:
Code:
fastboot unlock oem
Some text will appear on the screen of your Nexus, read it and then select yes. If the tablet reboots, you'll need to go to bootloader again, just follow the steps from before here and it'll do the work.
When you're back to bootloader mode, you'll run the script that came from the folder you extracted which contained Nexus 10 stock rom. Which is called "flash-all.bat". Let the script do what it is intended to do and voilà. Stock ROM successfuly flashed.
Now you provably want to restore your backup. On the folder that you've made your backup, open a d and type:
Code:
adb restore *backupname*.ab
It will restore your apps, if a app isn't restored you can download it again from Play Store and then you'll run the restore command again. It'll restore your app data. And for restoring the previous internal content just copy and paste lol.
Good luck,
~Lord
"This Story Ends Where It Began"
Sent from my monstrous Xperia Z1

Many thanks for the instructions. Do I need to be rooted in order to do this?

itm said:
Many thanks for the instructions. Do I need to be rooted in order to do this?
Click to expand...
Click to collapse
Hi,
No need to root . Actually I did it this way specially because.you were not rooted AFAIK.
Good luck,
~Lord
"This Story Ends Where It Began"
Sent from my monstrous Xperia Z1

Related

Rooting my phone - Every step of the way.

I bought my Samsung Nexus S from a Koodo booth here in Canada two days ago and have been enjoying it quite a lot since. I've also been reading up on the wealth of information pertaining to rooting it and trying to sort out so many different factors. I notice I'll have to use the search feature to find one little triviality that comes along and the fix it.
Then I decided to just make my own thread where I'll post every step of the ways I find and how I figure out how to solve my issues involved with rooting my phone.
To start, I found out you can create a backup with NANdroid.
I couldn't find any information on where to download this elusive "NANdroid" and then heard from This thread that all I have to do is
kenvan19 said:
Now lets get started. First, how does one install mods on Android? Lets do a NANDroid backup to begin:
1) Turn your phone off.
2) While holding the Volume Up button press the power button until the screen turns on and you will see a black screen with an Android on it and a lot of numbers and words that will mean nothing to you. This is called the Bootloader. In both the bootloader and the recovery mod you will use the volume buttons to navigate between options and the power button to select one.
3) Navigate down to Recovery option and select it.
4) Navigate down to backup and restore
5) Navigate down to backup and select it and let it run.
Click to expand...
Click to collapse
This didn't seem to be the case when I followed these steps; coming first to the predicted screen,
(containing this information)
Code:
FASTBOOT MODE
HW VERSION - REV 16
BOOTLOADER VERSION - I9020XXKA3
BASEBAND VERSION - I9020UCKB2
CARRIER INFO - ATT (but im with Koodo?)
SERIAL NUMBER - Lots of digits.
LOCK STATE - LOCKED
Also giving me the option to select between
Reboot Bootloader
Reboot
Recovery
Power Off
When going into recovery mode I'm greeted with an animation of a box with an arrow coming out of it. This turns into a triangle with a exclamation in the middle of it.
From here I press power and volume up to come to a menu that is supposed to have a NANdroid option I've been told.
Instead; I get the options:
Reboot system now
Apply update from /sdcard
wipe data/factory reset
wipe cache partition
At this point I'm currently stumped, though I'll continue searching as I'd rather not be stuck without a backup before starting the rooting process.
UPDATE: Even though I'm weary of proceeding without backing up, I'm sure I'll be able to restore my phone back to factory somehow.
I spent the night downloading and installing the Android SDK, then started configuring my device for use on windows 7.
Currently I'm in the bootloader interface after installing my phone's device drivers while being in fastboot mode.
The drivers take a couple of minutes, but they install successfully!
On I go, I'll just point DOS to the directory I want it to. Now I'll run the program through dos. What's this?! AND ERROR!?
Psht, I WOULD be missing the "AdbWinApi.dll" Not a hard thing to fix. I'll just google for the file!
Oh! I don't even have to download the file, the directory has just changed!
That was an easy problem to solve with many solutions provided!
Time to try again!
Sweet, it works. WHOA! TEXT ON MY ANDROID WHAT ARE YOU DOING!
And I select Yes to come to a nice screen that says my phone is now unlocked!
Now I need to download an image file? Okay. I can do this.
Okay, flash recovery the flashboot. Looks like the image has updated since the thread's instructions. Hopefully it's still compatible.
Now I just need to root. Just need to install a nice zip file.
AAAND, I can't seem to push it onto my phone for some reason. Time to search.
Oh, I can just copy and paste this file by enabling USB storage and dragging it over.
I'll just follow the rest of the steps, to no errors! Whoo! I'm free to install any ROM I want!
You'll need a custom recovery for nandroid, but first you will need to root. There's guides in the nexus s general section on doing that.
I kind of like this post.
Sent from my Nexus S using XDA Premium App
apreichner said:
You'll need a custom recovery for nandroid, but first you will need to root. There's guides in the nexus s general section on doing that.
I kind of like this post.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
I just read through Kursk's guide for rooting the i9020a and i9023 and noticed I have no ability to backup my android in the case something goes wrong.
Am I missing something, or do I have to root before having the privilege of backing up my phone's current ROM.
edit: Got sidetracked by a thread in the Chef's forum and learned that Java is the language for App development for Androids. Been reading about the Android OS and how it works for the past couple of hours. Brains bursting. xd
http://forum.xda-developers.com/showthread.php?t=895545
^ Has pretty much all you need to know for installing a custom recovery and rooting your phone.
It's only once you've installed ClockWorkRecovery Mod that you'll be able to easily make backups.

[HOWTO] Flawless bell update

WELCOME
to the WINDOWS Bell Atrix 0.37.4 update guide on how to go from 2.2.1 to 2.2.2! (without problems )
===================================================================================================================================================
WARNING
Do not attempt any of these steps if you are on an international firmware. You will probably brick your phone. This guide was made to help people who are having trouble updating from 0.37.4 to the new bell 2.2.2.
Bell users:
Please note that flashing files to your phone and modifying system contents can brick your phone. However, the method I am sharing worked flawlessly for myself and others.
Before beginning:
You need root access on your phone. If you are not sure what root access is, you shouldn't be having problems updating, because you wouldn't have modified system files. Regardless, here is a thread on how to root a bell atrix.
Guide:
Step 1:
Download Titanium Backup from android marketplace, and back up all of your apps and games. This is necessary only if you want to have an easy reinstall of most of your apps and games, as we will be wiping data off of the phone. (if you have another backup program, it should work just fine. Make sure it saves the backup to a folder that you can copy onto your computer)
Step 2:
Remove the external microsd card from your phone (if you have one). This is simply for safety purposes, as we don't want any data being wiped off of this (we don't need the microsd any time during the process).
Now, copy (or cut) all of the data from your internal storage to your computer, just in case, and we are about to wipe data off of your phone.
Step 3:
Format your phone. This can be done two different ways.
The first method is the simplest:
Menu -> Settings -> Privacy -> Factory Data Reset.
The second method (if for some reason you can't do the first) is:
Turn off your phone. Turn it back on while holding the volume down key. It will show the word FastBoot. Keep pressing the volume down key until you reach android recovery. Press the volume up key. Wait patiently. Once a little man appears, there should be a menu. If there isn't, press both the bottom left and bottom right corners of the screen simultaneously. That should bring up the menu. (give it a few tries, it takes me 8-10 lol). From this menu, press volume down until you get to wipe data, then press ok on the bottom left corner (give this a few tries too).
Step 4:
Your phone should now be acting like you just bought it. It should, upon reboot, prompt you to enter your country.. etc. Make sure you either use your existing motoblur account, or create a new one. It is just important for you to have a blur account for the update process (my phone gave me hell when I didn't have one). Do what is necessary to get your phone up and running again.
Step 5:
This is where the fun begins. Reroot your phone usinggladroot(or any other root method you know how to use). Download Superuser, install it, then download Root Checker from android marketplace to confirm root access. Whenever a Superuser popup comes up, confirm / say yes (and make sure the remember box is checked).
Once you have confirmed root access, proceed to the next step.
Step 6:
Download Tenfar's CWM recovery, and install the apk on your phone. Follow the instructions inside of the app to install recovery and enable recovery mode.
Step 7:
Download these two files, and put them in the root of your internal storage. (By root, I mean in the very first directory, ie. F:/put file here)
http://dl.dropbox.com/u/23800522/Blur_Version.0.37.4.MB860.BellMobility.en.CA.zip
http://dl.dropbox.com/u/23800522/Blur_Version.0.37.4.MB860.BellMobility.en.CA.crc
Step 8:
We are now ready to start fixing up the phone, and preparing it for the update.
First of all, we need to make sure ADB (the program we will be using on our computer) has root access on our atrix when it is plugged into our computer via usb.
Before plugging in your atrix via usb, enable USB debugging via:
Menu-> Settings-> Applications -> Development -> Check USB Debugging.
Now plug the atrix into your computer, and set the USB connection to: None. Check to make sure USB Debugging is in your notification bar.
Download these files onto your computer if you do not have the adb files yet. Extract the files preferably into the root of your hard drive (ie C:/ ) is just makes things easier this way.
Now open up command prompt.
If it is not in the directory where the adb.exe file is, you will need to type:
cd C:/
into command prompt. This says "change directory to C:/" (or wherever you put the files, could be cd C:/Program Files/ could be anywhere. wherever you extracted them to.)
Once in this new directory, type this into command prompt and press enter:
adb devices
If a device pops up (mine said TY290380 or something like that) that means that it recognizes your atrix. That is great news. We now have to enable ADB root access on the phone.
If nothing pops up, or it says some sort of error, you are not in the directory where adb.exe is located. Navigate to the proper directory.
Now, type the following command:
adb shell
One of two things can happen here. It will either create a new line with a $, or a new like with a #.
blah blah C:/ adb shell
$
or
blah blah C:/ adb shell
#
If a $ came up, you need to prepare a command BUT DONT PRESS ENTER YET. Type in "su", but dont hit enter. Now go to your phone and unlock your screen. After you unlock your screen and can see your homepages, press enter on your keyboard doing the "su" command. Now look at your phone. A superuser request should appear. Hit yes, and make sure that "remember" is checked. If not, it is ok, as long as the su command went through on your screen. it should now show a # on your command line.
For those of you who had a # on your command line, type in shsu and hit enter, then type in su and hit enter (just to play it safe ).
We are now ready to flash the first files to our device. You can close the command window.
Step 9:
Download this file. It is the original unmodified system partitions and files (thank you NFHimself). Extract the file using winrar or 7zip.
Change your USB connection on your phone to: Mass Storage, wait a minute or so, and then put the extracted file "mmcblk0p12.bin" in your internal storage on your phone. (ie. F:/ )
Step 10:
Dismount the phone from your usb devices via windows hardware manager. Unplug your atrix from your usb. Reconnect it, and choose connection type: none. Make sure usb debugging is in your notification bar.
Now, re-open command prompt. Renavigate to the directory where your adb files are located using the "cd C:/" command (or wherever your files are). Once there, perform "adb devices". Make sure a device is there. Next, perform the command "adb shell". You should have a #. Type in shsu, hit enter, now su, hit enter (just to be sure).
Now copy this command and hit enter (you have to right click paste into cmd prompt):
dd if=/sdcard/mmcblk0p12.bin of=/dev/block/mmcblk0p12
This will begin the flashing process, which will restore all stock system partitions allowing us to update properly. However, it's not over yet .
Mine took a few mins, do not panic. Simply wait for it to say "Complete" in x amount of seconds or whatever. Your phone may crash, but it should boot up fine (if not, that is why we have installed Tenfar's CWM )
After it is complete, turn off your phone. Keep it connected to the computer.
Step 11:
Boot up your phone holding volume down. Navigate to android recovery using volume down. Volume up. Open up the menu with the bottom left bottom right press. Go to clear cache. Press OK. Now reboot your phone.
You can now update through settings and it should work properly. If not, respond in here and I will guide you a few more codes, but it should work.
The phone should now boot up, and it should be running android version 2.2.2.
Regard this thread for how to root the new bell update. Just a heads up, it wiped my internal storage and SD card, so remove and backup that stuff. Lol. But it did root.
Now reinstall your backup program, and get your phone going again!
If you have any questions or problems please post them here and I will reply ASAP, personal messages are hard to keep track of. Thanks again to NFHimself for supplying files and code.
Cheers!
PS: I just finished exams, yay!?
Please say if you notice anything misspelled, etc. Gratzi
You are the f***in man for posting this. Thumbs up to NFHimself for his contribution too!
Links
Crud, your links for the files in dropbox aren't working.
Silvercloak5098 said:
Crud, your links for the files in dropbox aren't working.
Click to expand...
Click to collapse
You sure? I clicked them both myself to make sure they work.
How don't they work?
FYI: I'm reuploading them to megaupload as we speak anyways
IrshaadH said:
You are the f***in man for posting this. Thumbs up to NFHimself for his contribution too!
Click to expand...
Click to collapse
When I got my phone to update to 2.2.2 it felt amazing.
I just wanted to spread the love
Thank you so much!! You don't know how frustrated I've been all day! The only problem I had was that my root was gone after I flashed it, but I just updated through settings and it worked flawlessly
tyrkk said:
Thank you so much!! You don't know how frustrated I've been all day! The only problem I had was that my root was gone after I flashed it, but I just updated through settings and it worked flawlessly
Click to expand...
Click to collapse
NP! Just glad you got your update.
I changed the steps so that the last step is simply updating via settings. If that doesn't work for people I will help them out in this thread with the more complicated coding way.
Cheers!
Couldn't step ten be used to revert to stock from an international sbf?
Sent from my MB860 using XDA App
Ok..quick question. You said not to install for those using any international version. I have run the Telstra sbf at one point..as well as had the Greyblur rom on. Before installing the Telstra I had made a backup using CWM, and a few days ago I had to revert to my old backup due to a rogue app. In my About phone, it tells me my System version is Blur_Vision.0.37.4MB860.BellMobility.en.CA with a Build number of OLYA_U4_0.37.4.
Would this be still safe for me to do seeing's how it seems i'm back to my "Bell sbf" or is there still going to be some Telstra files in there that could cause me some problems?
I made it through to the end of step 10 and the phone was looking good. Then when I shut off the phone and tried to go into Android Recovery, it keeps going to the triangle symbol and I have to reboot.
After a couple times of that I decided to check Android Recovery from inside the app list and it said I no longer have root access.
Any ideas what to do now??
Rickroller said:
Ok..quick question. You said not to install for those using any international version. I have run the Telstra sbf at one point..as well as had the Greyblur rom on. Before installing the Telstra I had made a backup using CWM, and a few days ago I had to revert to my old backup due to a rogue app. In my About phone, it tells me my System version is Blur_Vision.0.37.4MB860.BellMobility.en.CA with a Build number of OLYA_U4_0.37.4.
Would this be still safe for me to do seeing's how it seems i'm back to my "Bell sbf" or is there still going to be some Telstra files in there that could cause me some problems?
Click to expand...
Click to collapse
Depends on whether or not you're still on the telestra framework. If you're confident with your ability to recover from a potential brick via early usb enumeration id go for it.
bdking2 said:
I made it through to the end of step 10 and the phone was looking good. Then when I shut off the phone and tried to go into Android Recovery, it keeps going to the triangle symbol and I have to reboot.
After a couple times of that I decided to check Android Recovery from inside the app list and it said I no longer have root access.
Any ideas what to do now??
Click to expand...
Click to collapse
Edit: See my lower post first, then this one
Open up the menu in android recovery by tapping both the bottom left corner and bottom right corner of the screen at the same time.
It should show you an error if there was one.
Does the phone boot fine?
You should lose root access. When you flash the .bin it restores your bell to stock like you got it from the store. That allows you to update.
Most importantly open up the recovery menu when you see the triangle by tapping the bottom left and right corners simultaneously. Itll take a few tries.
IrshaadH said:
Couldn't step ten be used to revert to stock from an international sbf?
Sent from my MB860 using XDA App
Click to expand...
Click to collapse
No, since you are on an international framework it will probably brick your phone.
That .bin file contains the system partitions from the stock bell framework.
If you want to try go ahead but I think the odds are against you
bdking2 said:
I made it through to the end of step 10 and the phone was looking good. Then when I shut off the phone and tried to go into Android Recovery, it keeps going to the triangle symbol and I have to reboot.
After a couple times of that I decided to check Android Recovery from inside the app list and it said I no longer have root access.
Any ideas what to do now??
Click to expand...
Click to collapse
Bdking I have another idea. if you can boot up your phone, re-root it using any normal methods, then install CWM. Boot into CWM recovery mode and clear the cache from there. Then do step 11.
Chances are the update file is hanging out in your cache so when the android recovery sees that it immediately tries to install the messed up package.
Thats why you should clear cache on CWm because it wont try to install anything automatically from the cache. Then do step 11.
Hope it helps, Mag.
No my phone boots fine. And now I can get into android recovery to clear cache and have done so. But before I read your response I rooted my phone again.
Should I just restart everything?
bdking2 said:
No my phone boots fine. And now I can get into android recovery to clear cache and have done so. But before I read your response I rooted my phone again.
Should I just restart everything?
Click to expand...
Click to collapse
No you should be good to go try to update via settings.
You flashed the bin right?
If so you're good to go
I flashed the bin for sure. But wasn't sure about the process because I rooted again.
bdking2 said:
I flashed the bin for sure. But wasn't sure about the process because I rooted again.
Click to expand...
Click to collapse
Root shouldnt change anything only deodexing/webtop mod/ theming should mess it up.
If you flashed the bin go for it. Worst thing that can happen is that the update fails.
In that case, redo step 10, then do step 11.
Magnetox said:
No, since you are on an international framework it will probably brick your phone.
That .bin file contains the system partitions from the stock bell framework.
If you want to try go ahead but I think the odds are against you
Click to expand...
Click to collapse
So, there is absolutely NO WAY I can get back to the Bell framework from 2.1.1 without an actual Bell sbf?
IrshaadH said:
So, there is absolutely NO WAY I can get back to the Bell framework from 2.1.1 without an actual Bell sbf?
Click to expand...
Click to collapse
NFHimself knows a way.
But hes a master of code.
Pm him, he might be able to help you.
He was happy he got his bell 2.2.2 thoough. so im assuming it wasnt easy.

[GUIDE] TF300T Unlock/Root/Flash for Factory JB Devices on 4.1.X (newbie friendly)

Having recently purchased a TF300T with intent to customize the hell out of it, I ran into a big problem. There wasn't one definitive guide for my general case, some of the steps I read weren't completely clear, and I often had to put pieces together from multiple guides to get where I wanted. Halfway through the process it occurred to me that sharing my experience in form of a guide could give the community something I wish that I had when I began. So enough with the intro, let's visualize the process before we begin.
This guide is for new owners of TF300T devices that have Jelly Bean 4.1.X preflashed from the factory. ​
joelalmeidaptg said:
If your tablet has 4.2.1 Android version from Asus, DO NOT FLASH A RECOVERY THAT WAS ACTUALLY MADE FOR 4.1 TABLETS! You will end up on a PERMANENT BRICK with no solution until now. You won't be able to use fastboot ever again. You won't be able to flash anything ever again. You will be stuck with a bricked tablet!
If you are looking for a Recovery for a 4.2.1 bootloader (and a complete guide for updating), read this thread: http://forum.xda-developers.com/showthread.php?t=2187982 Don't do it with any other tutorial: they are for 4.1 bootloaders!
Click to expand...
Click to collapse
For those curious...
My TF300T was one of the Champagne Gold models purchased from Groupon with a serial that begins with C9. I recall seeing a user with a Champagne Gold from Amazon that still had ICS. If you're still on ICS, this guide isn't for you-- Read up on NVflash and decide if you want to take advantage of it BEFORE you upgrade to JB.
Here's an overview of what we will be doing:
Click to expand...
Click to collapse
Unlock the TF300T
Backup apps, app data and files (Recommended, Optional)
Install ClockworkMod Recovery (soon to be replaced with TWRP; I gave in)
Root the TF300T (Optional)
Backup your stock Asus ROM (Recommended, Optional)
Flash a Custom ROM
Backup your working Custom ROM (Optional)
Additional information you should know:
Click to expand...
Click to collapse
This guide has been made with the total android noob in mind. Having only owned an android tablet for a week, I too am an android noob. On the flipside, I'm no noob to hardware and software exploits and modifications. I've tried to make this friendly for any type of noob, but there are a few instances where I expect basic menu and Windows 7 navigation skills.
ClockworkMod Recovery doesn't appear to have a "Shutdown" function, nor does it display current battery level-- for this reason, the recommendation and warning to have a battery charged to at least 60% is extremely heavy. The worst thing that can happen to any device is usually an incomplete flash. Don't let it happen to you-- start charging your TF300T NOW.
I have seen reports that "Fastboot" doesn't work properly on Windows 7 64-bit. This guide addresses that issue, as I also encountered it. If you don't know what "Fastboot" is, in the words of an admirable comedian, "You gonna learn today". Don't worry about it for now!
Your device came with JB-- you didn't miss the bus for NVflash. In your case, the bus never came.
I am not responsible for any damages caused to (but not limited to) yourself or your device.
Even if you think you're pretty good at figuring this stuff out, stick to the directions as close as possible.
If you love tweaks, you're going to love your custom ROMs.
Let's get started!
Unlocking Your TF300T
Click to expand...
Click to collapse
WARNING: Unlocking your TF300T will void your warranty. If your device breaks or fails under normal use, don't expect Asus to pick up the tab! Be aware that once unlocked, it cannot be relocked.
There are two ways you can go about this-- Either download the official Asus unlock utility for Windows or download the .apk and install from your tablet (Asus utility still working! I successfully unlocked mine on JB 4.1.1). I chose to download the .apk and install directly on my tablet, therefore this is the method I will cover.
To download the .apk file, scan the QR Code below with Barcode Scanner (free; on Play store) and open the URL to the Asus Support page for the TF300T. Alternatively, if you are viewing this thread on your TF300T, you may simply tap the code below.
​
On the Asus Support page, select "Android" as your OS. The page will reload and present you with a list. Click on "Utilities", then after it has loaded, download the Unlock Device App. When it is done downloading, a notification will pop up in the lower right corner. Click on it to install the Unlock tool. You'll also be able to open the app immediately after the install completes-- open it now.
After scrolling to the bottom of the End User Licence Agreement, select the checkbox indicating that you agree to those terms. You should now have access to the slider that will unlock your tablet. Stay connected to your wifi and unlock when ready. The unlock will not work without access to the internet.
If I recall correctly, your tablet should reboot. Just let it do what it wants. After it's done doing it's thing, take this opportunity to make backups! when you and your tablet are ready, we'll continue on to the next step.
Setting Up The Android SDK and Installing ClockworkMod Recovery
Click to expand...
Click to collapse
​Perhaps this was the most frustrating part of my experience-- Installing the Android SDK went fine when I could actually find the .exe download. After that it was a matter of getting the drivers for Fastboot working properly. I was able to narrow it down to a problem for users of Windows 7 64-bit.
From your PC, go HERE, scroll down and click on "Download For Other Platforms". Scroll down more and under the "SDK Tools Only" downloads, you should find a download that looks like: "installer_r##-windows.exe" where "##" is the revision number. Download this .exe and assuming Windows is installed on C:\, install it to either "C:\tools\android-sdk" or "C:\android-sdk". If Windows is not installed to drive letter C, replace the drive letter with the correct letter for your system. Do the same when following the command prompt examples that follow.
Open the Android SDK Manager. Search for "SDK Manager" in the start menu and you should find a result with the same name and a little android icon. Once it's open, you'll be presented with a list. Check the box next to the "Tools" folder, then expand the "Extras" folder and check the box next to "Google USB Driver". In the lower right corner, click "Install packages...", agree to all when ready and begin your downloads.
In the settings application of your tablet, go to the "Developer options" tab near the bottom. Ensure that the switch in the top right corner is in the "ON" position, then under the "Debugging" header, enable "Android debugging". Read the following carefully before you continue: Shut down your tablet and connect your USB cable. Hold the power and volume down buttons at the same time. Keep holding until you see a menu. The menu will consist of a few items, among them there is "RCK", a USB icon, an Android icon, and a "Wipe Data" icon. Tap volume down until the USB icon is selected, then press volume up. Cross your fingers and hope drivers install automatically.
They probably won't, so have windows look in the \android-sdk\extras\ folder. It should say the drivers installed successfully. Either way, open the start menu, and right click on "Computer". Click "Manage", then in the left hand pane of the new window, click "Device Manager". The "Other Devices" section may be already expanded in the center pane. If it is, look to see if "Fastboot" appears in that section with a yellow exclamation mark.
If it isn't there, you shouldn't be worried-- check for a section called "Android Phone" or "Portable Devices". Look for a device called "Android ADB Interface" or "Fastboot". It shouldn't have a yellow exclamation mark next to it.
In the event you have the device appearing with a yellow exclamation mark next to it, go HERE and download PdaNet. This was my remedy for this error. Unplug your TF300T from your computer and install PdaNet following instructions. During the install a warning will appear to install unsigned drivers. Install the driver anyway, and let the installation finish. You can now plug your TF300T back in, and it should be recognized automatically. Just in case, hold the volume down and power buttons again until your tablet restarts and you see your hidden menu again. Once again, tap volume down until the USB icon is selected, then press volume up again to select it. Check the Device Manager again and you should find the "Android Phone" section at the top. Within it, you'll find a device called "Android ADB Interface".
Now that we have your tablet and computer set up nicely, we can finally install ClockworkMod (CWM) Recovery. Go to THIS thread and download the attachment called "recovery-jb.img" (thanks XpLoDWilD!). It is VERY important that you download "recovery-jb.img" as this is the version for users with Jelly Bean bootloader!
Rename the file you just downloaded to "recovery.img" and place it in \android-sdk\platform-tools . In Windows 7, open the Start Menu and search for "cmd". You should see a result called "cmd.exe". Right click that result and click "Run as Administrator". Now type the following commands into the new command prompt window in order to flash CWM Recovery:
Code:
cd C:\tools\android-sdk\platform-tools\
fastboot -i 0x0B05 flash recovery recovery.img
DON'T unplug your tablet!! Don't close the window either! Wait for the command prompt to finish what it's doing, then you can type the final command:
Code:
fastboot -i 0x0B05 reboot
Your tablet will reboot. Once it has fully rebooted, shut it down and hold volume down and power again to access our tablet's hidden menu. This time, instead of selecting the USB icon, select "RCK" and press volume up. If I'm not mistaken, "RCK" stands for "ReCovery Kernel". ClockworkMod Recovery should load up. If it doesn't, then you were not successful in flashing CWM. If it does, then you can go to the Backup and Restore menu and create a backup.
I was overconfident when I went through all this, and I didn't make a backup-- for me, I wasn't able to get my SD card detected (64GB fat32), but even in this case you should be able to make a backup to your "Internal SD card". Unfortunately, you are on your own for this step. Make sure that you transfer this backup to your PC after creating it. You may need to disable Developer options in your TF300T's settings before you can transfer files over again.
In THIS post, XpLoDWilD gives instructions on how to Root your tablet. If I'm not mistaken, this applies to users who are using a ROM that does not already have root. If you care about Root right now, you can go ahead and flash his attached .zip file using CWM to your TF300T.
When I did this, I selected the .zip file with CWM and then went back to the main menu to select reboot. CWM then prompted me that it needed to fix permissions in order to keep Root. I tried it both ways-- first I let it fix permissions, then used a Play store app to check for root. Test came up negative, so I tried again without allowing it to fix permissions. Negative again. I tried again, allowing it to fix permissions again and then left it alone. If you are successful in rooting your TF300T, you can use Titanium Backup to backup your device later. However I used an app that did not require root that worked fine. The choice is yours.
Flashing a custom ROM
Click to expand...
Click to collapse
Now it's time to find a custom ROM to flash. For my guide I will cover Baked TF300T Blackbean #6-- Based on CyanogenMod10, and quite a nice upgrade from the stock ROM. The only downside I found is the Asus App Backup application is not included and cannot be installed. I'm unsure why this is the case-- I have even attempted to install it via CWM with no success. If you need this app or the App Locker app, I suggest you choose a non-CM10 ROM. You are on your own in deciding an alternative, but I have heard great things about CleanROM and I seem to recall reading that these incompatible Asus apps work on it. Don't take my word for it-- do your own research to make sure!
It should also be noted that ROMs like Blackbean #6 have some potentially dangerous settings that can make a power user salivate profusely.
Spiderman's Dad said:
With great power comes great responsibility
Click to expand...
Click to collapse
Okay, so it was his uncle, whatever. But either way, if you're going to install this ROM (or any other with overclock tweaks), BE CAREFUL when selecting different settings for CPU speed and overclocking. I used to overclock my PC as a hobby and pushed a 1.8GHz CPU to 2.77GHz on air cooling.. The thing I learned in the process is if you don't have the proper settings, your computer becomes unstable and weird things start happening. Data corruption, clicking the Start Menu does something crazy and unusual, PC crashes randomly, etc... Some of these errors are due to insufficient cooling-- a problem you cannot remedy when working with a portable device.
Assuming you are new to this tablet like I am, use this rule of thumb when dealing with foreign and potentially dangerous things: DON'T TOUCH IT until you understand it. Then when you understand it, understand it again. Then when you feel you've understood it twice, take baby steps. It's like jumping up a cement set of stairs-- you're definitely not going to try to jump five steps in your first attempt, unless you want to risk smashing your face and bloodying yourself up. Take it one step at a time-- make sure you can land on your feet before deciding to go further.
There's a lot of other options Blackbean #6 has that the average user can still appreciate, so ignore those overclocking/CPU stuff and focus on the other tweaks. Nova Launcher is included and is pretty sweet. I upgraded to Nova Launcher Prime and feel it's worth the extra $4, but I'll leave that for you to decide. There are more options than merely Nova Launcher alone, and not all of them have a price tag.
Without further adieu, let's download the Blackbean #6 ROM and Gapps. Head over to THIS official release thread for the downloads. The names of the files you want are:
baked_tf300t_blackbean-6_jb-bl_b6.zip
gappsinverted-jb-20121029-signed.zip​
Put them into a folder called "bb6" and copy the folder over to your TF300T. If your SD card is working in CWM (from CWM, go to the "mount" menu and try to mount SD card), copy the folder to your SD card.
NOW is the time to do any final backups before your fresh ROM install! I recommend "App Backup & Restore" on the Play store. If your tablet is rooted, you can also use Titanium Backup. Both will work fine, though generally speaking people seem to prefer Titanium Backup. People also seem to prefer TWRP over CWM, but I personally find the design unappealing. More importantly, I could only find a proper guide on installing CWM on a factory flashed JB TF300T.
Once you've made your backups, don't do anything until these backups are safely transferred to your PC! Don't forget to backup your music, movies and photos...
Now that you're 100% confident you've made all the backups you need and your battery is well charged and ready to go, let's flash your custom ROM! Shutdown and enter our hidden menu you should be very familiar with by now. Boot into CWM (with RCK icon from hidden menu selected, press volume up), then press volume up/down to navigate.
READ THE FOLLOWING SECTION BEFORE DOING ANYTHING ELSE:
Select "install zip from sdcard" and tap power. If you placed your "bb6" folder on your SD card, tap the power button once more. If it says "Can't mount /sdcard/" in the bottom left corner, then select "choose zip from internal sdcard" and tap power. Earlier you should have put your ROM and Gapps in a folder called "bb6". If you can't find this folder in either the SD card or internal SD card locations, GO BACK, reboot, and make sure you put the folder on your TF300T or your SD card. You should also make sure that the ROM and the Gapps file are inside that folder as well. Do NOT unzip them! They are just fine as they are. We are NOT flashing the ROM and Gapps yet, we are merely making sure they are there before you wipe your tablet. If the files are there, go back to CWM's main menu.
Select "wipe data/factory reset" and tap the power button. Confirm that you want to wipe, wait for it to finish.
Now select "wipe cache partition" and press the power button. Confirm that you want to wipe, wait for it to finish.
Go back to the main menu and select "advanced" and tap power, then select "wipe dalvik cache" and tap power. Confirm that you want to wipe, wait for it to finish.
Don't worry! Your ROM and Gapps should still be in your bb6 folder. Navigate to "install zip from sdcard" again, and let's make the magic happen. We are going to install the ROM first, then install Gapps. Only after both the ROM and Gapps are installed will we reboot our tablet.
So select the ROM first, confirm that you want to install, wait for it to finish. This one will take a long time compared to the Gapps. Just be patient and wait, even though it looks like it's not doing anything.
Then select the Gapps, confirm that you want to install, wait for it to finish.
Finally, reboot your tablet and cross your fingers. You should be greeted with the sweet victory of the startup animation. Go through the first time setup routine, and make sure the tablet works. From here you can optionally backup your custom ROM, but I recommend getting your settings the way you like them before you backup.
Give yourself a pat on the back--you survived! Hope this guide helped someone out-- I was able to sort through my problems fine, but I felt it important to share my experience. I know I couldn't have been the first to hop through these hoops anyway.
Congrats on your custom ROM Transformer Pad. Enjoy your tablet.
P.S. Questions? Comments? Suggestions? If you have any of the three, feel free to share! If it's a suggestion, please PM me and I'll see about making edits to my guide. All are appreciated, and especially anything that clears up any uncertainties I've expressed.
Special thanks (individuals and groups I owe credit for my process):
Drgravy, Team Baked, and everyone who wrote code that was used in the Blackbean ROMs. Blackbean #6 is my first custom ROM, and so far it's been great!! Keep up the awesome work!
XpLoDWilD, for CWM Recovery + Root on TF300T. These files and instructions were the major keys in making my endeavor a success
I also want to send out a big thank you to every other individual and team who has released a custom ROM for the TF300T-- admirable work, and far more than I could ever do. Thanks for giving us options and making us excited to have a customized tablet!
(....And many more! Currently in finals week (yikes) and can't recall everything right now-- will add more as I remember)
It's a shame that such a well written guide has so little thanks. Have mine.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Very nice. hopefully this helps people just getting the tf300.
note, if you want to install TWRP recovery instead, your command will change accordingly, just make sure you type in the exact file name you want to flash. so if your recovery file is named twrp.blob:
fastboot -i 0x0B05 flash recovery twrp.blob
Thanks!
Your guide helped me a lot. I had problems only with root. Flashed 4 times, but always got "no root acces". Finally, I downloaded root package from here http://forum.xda-developers.com/showthread.php?t=1845377 and it works well
is there any way around that "unknown error..." when i try to use the unlock app yet?
I keep trying but the same error message keeps coming up
sq1ne said:
is there any way around that "unknown error..." when i try to use the unlock app yet?
I keep trying but the same error message keeps coming up
Click to expand...
Click to collapse
Is your tf300 new? first hand? or have u ever sent it to asus for repair before?
Well written, well thought out instructions. Many, many thanks!! I'm still having some trouble though. I get stuck once I download the unlock app, open it, agree to the EULA, then another warning appears that is a black screen white text and a yellow triangle. Nothing happens after that. There are no buttons to agree, no checkboxes, nothing happens. Any advice?
*UPDATE* Figured it out. Be sure to sent the font in settings->display->font size to small, then you will see it. The large font pushes the agree button off the bottom of the screen.
It would be great if CWM in this OP were replaced with TWRP. Many are having issues with CWM. Me being one of them. I flashed TWRP with fastboot and no more problems!
I agree with the post above. Sad that such a well written post has so little thanks. :good:
thnx for this amazing guide, but I am still unsure of this guide will work for me.
I am from Holland (Europe)
specs from my ASUS Transformer TF300T:
Android 4.1.1
Kernel 3.1.10 ([email protected])
Buildnr JR003C.WW_epad-10.4.2.18-20121122
Pad EC Version PAD-EC20T-0216
My question is...will this guide also work for me? ...since I have JB 4.1.1 & build 10.4.2.18
I am also worried about the fact that this guide in for an american(?) transformer I gues...so do I need other files then the files mentioned?
I would love to have ROOT and install a custom rom and remove bloatware etc.
thnx for the help in advance!
Thank you so much, perfect for so many people here.
Can you edit it with TWRP? I would use this right now but as above poster said there have been issues with CWM so don't want to try it.
P.s. i got mine from groupon too
Tamaskan said:
Is your tf300 new? first hand? or have u ever sent it to asus for repair before?
Click to expand...
Click to collapse
bought mine brand new just this past Black Friday.
updated to .18 firmware
I don't want to have to send it in.
GodfleshNL said:
thnx for this amazing guide, but I am still unsure of this guide will work for me.
I am from Holland (Europe)
specs from my ASUS Transformer TF300T:
Android 4.1.1
Kernel 3.1.10 ([email protected])
Buildnr JR003C.WW_epad-10.4.2.18-20121122
Pad EC Version PAD-EC20T-0216
My question is...will this guide also work for me? ...since I have JB 4.1.1 & build 10.4.2.18
I am also worried about the fact that this guide in for an american(?) transformer I gues...so do I need other files then the files mentioned?
I would love to have ROOT and install a custom rom and remove bloatware etc.
thnx for the help in advance!
Click to expand...
Click to collapse
Yes, it will work, I've tried it. But i suggest you use TWRP custom recovery though. CWM has high chances of getting bricked.
Tamaskan said:
Yes, it will work, I've tried it. But i suggest you use TWRP custom recovery though. CWM has high chances of getting bricked.
Click to expand...
Click to collapse
Could you also please add a NOOB tutorial for installing TWRP Recovery (this forum is very confusing in getting the right tutorials / avoiding outdated tutorials which would brick my TF300T etc)?
Example:
quote from XDA forum in TWRP topic: "The fastest and easiest way to install TWRP is to use the GooManager app" <--- GooMnager needs ROOT so I can't use this method?
My ASUS TF300T is completely untouched & unrooted still and don't won't to mess it up.
GodfleshNL said:
Could you also please add a NOOB tutorial for installing TWRP Recovery (this forum is very confusing in getting the right tutorials / avoiding outdated tutorials which would brick my TF300T etc)?
Example:
quote from XDA forum in TWRP topic: "The fastest and easiest way to install TWRP is to use the GooManager app" <--- GooMnager needs ROOT so I can't use this method?
My ASUS TF300T is completely untouched & unrooted still and don't won't to mess it up.
Click to expand...
Click to collapse
www.mediafire.com/?7v1gwbbzqzvzto7 <- fastboot and twrp, the twrp is out dated so if you want you can download new one from twrp website.
2)Extract the recovery with fastboot files zip and open a command prompt in the same folder of the adb and fastboot files (you must click the fastboot and adb when extracred and i suggest you put your extracted fastboot and recovery zip in C:\(foldername) and then open cmd)
3) Reboot into the bootloader of your tablet, type: adb reboot bootloader
4) When your tablet has reached the bootloader navigate with volume down to the usb icon and press volume up to confirm.
5) To flash the recovery type:
fastboot -i 0x0b05 flash recovery tf300t-jb.blob
Credits to krabappel2548.
Tamaskan said:
www.mediafire.com/?7v1gwbbzqzvzto7 <- fastboot and twrp, the twrp is out dated so if you want you can download new one from twrp website.
2)Extract the recovery with fastboot files zip and open a command prompt in the same folder of the adb and fastboot files (you must click the fastboot and adb when extracred and i suggest you put your extracted fastboot and recovery zip in C:\(foldername) and then open cmd)
3) Reboot into the bootloader of your tablet, type: adb reboot bootloader
4) When your tablet has reached the bootloader navigate with volume down to the usb icon and press volume up to confirm.
5) To flash the recovery type:
fastboot -i 0x0b05 flash recovery tf300t-jb.blob
Credits to krabappel2548.
Click to expand...
Click to collapse
Here is a little update on my progress...
- I unlocked the bootloader of my TF300T
- I managed to install latest TWRP
- Made a (COMPLETE) backup of the untouchedl system with TWRP <--- DO THIS BEFORE ANYTHING ELSE!
- Rooted the TF300T with the WW file in this topic: http://forum.xda-developers.com/showthread.php?t=2033205 <----works awesome!
- Made a second (COMPLETE) backup of the now ROOTED system with TWRP
- Tried installing the latest "Cleanrom 3.01 Inheritance", but got the infamous "bootloop" too...the rom has been pulled down from the forum till that is fixed ( I thought I had done something wtong flashing a custom rom, but actually a lot of others had the same problem)
- Waiting for a "bootloop fixed" Cleanrom Inheritance 3.02....and gonna try flashing it again.
first of all thanks a lot ive been going crazy looking for this!! my question is will it work for me?
i bought my tf300t in sept with ics and upgraded to jb....
also i tried this not to long ago and ran into a problem after i unlocked
so right now its just unlocked but not rooted do i need to reverse that or what?
my apologies im extremely noob haha
GodfleshNL said:
Here is a little update on my progress...
- I unlocked the bootloader of my TF300T
- I managed to install latest TWRP
- Made a (COMPLETE) backup of the untouchedl system with TWRP <--- DO THIS BEFORE ANYTHING ELSE!
- Rooted the TF300T with the WW file in this topic: http://forum.xda-developers.com/showthread.php?t=2033205 <----works awesome!
- Made a second (COMPLETE) backup of the now ROOTED system with TWRP
- Tried installing the latest "Cleanrom 3.01 Inheritance", but got the infamous "bootloop" too...the rom has been pulled down from the forum till that is fixed ( I thought I had done something wtong flashing a custom rom, but actually a lot of others had the same problem)
- Waiting for a "bootloop fixed" Cleanrom Inheritance 3.02....and gonna try flashing it again.
Click to expand...
Click to collapse
i never backup.... I only backup app using titanium backuo, if something on the rom goes wrong i just reflash latest firmware from asus website. If you like custom roms, i suggest you use Energy Rom if you want OC or Hydro rom if you want just modified stock rom with better performance.
I have a problem while I try to run the flash recovery command. I have done all steps prior to this.The only difference I see is in device manager I get "ASUS Android Devices". Now, the error I am getting comes after trying to run the command, I get "error: cannot load 'recovery.img' No error" . I have also tried the pdanet solution. Thank you for your help in advance.
Stupid question... but I am going to ask it. Having never rooted my TF300 it is on latest firmware will this guide still apply to be even though I bought my device running ICS but have updated to latest firmware? Have never rooted tablets before so all new to this.
Agera said:
Stupid question... but I am going to ask it. Having never rooted my TF300 it is on latest firmware will this guide still apply to be even though I bought my device running ICS but have updated to latest firmware? Have never rooted tablets before so all new to this.
Click to expand...
Click to collapse
It will work as long as you are using Jelly Bean

Problem getting 4.2.2 update: "Verification failed"

Hey everyone,
I'm having trouble getting my Nexus 7 to update to 4.2.2. My device is rooted, I recently performed a factory reset.
The update has never appeared in my "System updates" menu, so I looked around and saw that if you force stop "Google Services Framework" and clear its data, the update will appear in "System updates."
It did, but when it finishes downloading, it says "Verification failed."
I tried another factory reset, and I had to again force stop and clear data on "Google Services Framework" to get the update to appear, but again it downloads and say "Verification failed."
I'm stumped now. Do I have to unroot and reroot? Do I have to keep waiting for this update? Do anything with the bootloader? (I really hope not...)
Thanks everyone!
If some files in your system got changed for whatever reason, then you wont be able to update. You can flash the 4.2.1 stock rom and try ota update again.
Leonhan said:
If some files in your system got changed for whatever reason, then you wont be able to update. You can flash the 4.2.1 stock rom and try ota update again.
Click to expand...
Click to collapse
Is flashing the stock 4.2.1 rom the same thing as doing a factory reset to 4.2.1?
If it isn't, would flashing the 4.2.1 rom wipe my tablet?
Leonhan said:
If some files in your system got changed for whatever reason, then you wont be able to update. You can flash the 4.2.1 stock rom and try ota update again.
Click to expand...
Click to collapse
If he is trying to do an OTA to 4.2.2, would it not be more straightforward to just flash the 4.2.2 factory image? The OP has already done a factory reset, so it doesn't look like he/she is particularly attached to his current setup.
Also - the language he used was vague - it sort of sounded like the OP observed "verification failed" in the main OS rather than in the recovery. Not sure.
But it doesn't matter - newbs should not be trying to use OTAs on modified /system images or tabs with altered boot images. It's just too detailed a process to describe compactly.
@Horadrius
Before you do anything further, you should back up everything on the "SD Card" to your PC. Yes, all of it. You can throw it away later if you find you didn't need it. But if you follow the instructions for the Google (factory) images install, everything gets wiped off of /data including your pseudo - SD card.
At a minimum, that will allow you to follow the SBS instructions for installing the 4.2.2 factory images, or - you can simply install a 4.2.2 Stock ROM from over in the dev forum.
Whatever you do, start getting in the habit of making backups - and at least occasionally also getting copies of those off of the tablet.
Oh boy, lot of information to digest here....and a lot of questions
it sort of sounded like the OP observed "verification failed" in the main OS rather than in the recovery. Not sure.
Click to expand...
Click to collapse
Yes, it was the main OS - Settings -> About Tablet -> System Update.
After force stopping Google Services Framework, the update showed up there, and when the download bar reached 100%, it said "verification failed." I did a factory reset, and now when I go to System Update it simply says that my system is up to date.
This makes me think I'm not "supposed" to have the update yet, and that it will arrive, eventually. Yes?
newbs should not be trying to use OTAs on modified /system images or tabs with altered boot images.
Click to expand...
Click to collapse
So, no updating the device from System Menu because I'm rooted/unlocked bootloader? I'll have to flash everything as it comes out?
@Horadrius
Before you do anything further, you should back up everything on the "SD Card" to your PC.
Click to expand...
Click to collapse
Would Titanium Backup held in this regard? Or simply copy/paste the sdcard folder to my PC?
This whole process has been very frustrating. Is this the price you pay for rooting your device? Making simple system updates into a maze?
Horadrius said:
Oh boy, lot of information to digest here....and a lot of questions
Yes, it was the main OS - Settings -> About Tablet -> System Update.
After force stopping Google Services Framework, the update showed up there, and when the download bar reached 100%, it said "verification failed." I did a factory reset, and now when I go to System Update it simply says that my system is up to date.
This makes me think I'm not "supposed" to have the update yet, and that it will arrive, eventually. Yes?
So, no updating the device from System Menu because I'm rooted/unlocked bootloader? I'll have to flash everything as it comes out?
Would Titanium Backup held in this regard? Or simply copy/paste the sdcard folder to my PC?
This whole process has been very frustrating. Is this the price you pay for rooting your device? Making simple system updates into a maze?
Click to expand...
Click to collapse
Sounds like your download is bad if it fails at this stage. I believe it is saying the checksum of the download file doesn't match whatever is downloaded.
PS. not related to N7, why XDA use the re-captcha which I need to refresh several times to get something I can read
Horadrius said:
Yes, it was the main OS - Settings -> About Tablet -> System Update.
After force stopping Google Services Framework, the update showed up there, and when the download bar reached 100%, it said "verification failed." I did a factory reset, and now when I go to System Update it simply says that my system is up to date.
This makes me think I'm not "supposed" to have the update yet, and that it will arrive, eventually. Yes?
Click to expand...
Click to collapse
No. It means that for some strange reason, running a checksum program on the downloaded OTA file failed to produce the expected checksum. The most likely way this can happen is that the file is truncated - the download stopped short of the full file. Don't know why this is happening, but there you go. There could be other failure causes that are more rare, but it doesn't mean you are not "supposed" to have the OTA. It means that the download process is failing.
The *stock* recovery does a number of even more sophisticated checking than this; but it appears from your description that the recovery never even gets booted.
Horadrius said:
So, no updating the device from System Menu because I'm rooted/unlocked bootloader?
Click to expand...
Click to collapse
Yes and No. An unlocked bootloader causes no problems at all. ANY of the following CAN or WILL cause problems:
- attempting to run an OTA with a custom recovery installed instead of the stock recovery.
- having a modified boot partition (e.g. non-stock kernel, or slightly modified boot partition)
- having altered (or removed!) files in the /system partition that are targeted for patching.
- permissions changes performed by the installer script can cause root functionality to disappear
Horadrius said:
I'll have to flash everything as it comes out?
Click to expand...
Click to collapse
Not sure what you are asking here, but the basic answer is that if you stay on stock you can certainly apply OTAs easily. If you start altering things, you might or might not be able to apply an OTA; there are simply no guarantees.
[size=+1]OTAs are meant for stock installations - including a stock recovery. PERIOD. While it is possible that an OTA could succeed, it is unreasonable to have the expectation that it will do so.[/size]
Horadrius said:
Would Titanium Backup held in this regard? Or simply copy/paste the sdcard folder to my PC?
Click to expand...
Click to collapse
I presume you are talking about the future here, as you said that you already did a factory reset at least twice. If you have subsequently added stuff back in, then I suppose you might be talking about the present tense.
But, yes - either TiBu or the Carbon app can be used along with a strategy where you simply back up the apps & data you are interested in, (plus any "flashable zips" that you used to customize your device in the first place), and you simply start from scratch with a factory install followed by re-rooting, and then restore your apps & data (using TiBu or Carbon).
One other thing you can do which is EASY is this: simply wait until a developer/ROM cook publishes a "Stock" flashable ROM based on the release that the OTA is upgrading to. Don't worry about the OTA, just wait a little bit. (These ROMs are already out for the WiFi-only model, BTW).
1) Take a backup as the first thing you do. It's easy and gives you some insurance.
2) Don't wipe (no "factory reset") - just install the Stock ROM over the top of your existing ROM.
that's it. If you were using a custom kernel, re-install it.
Horadrius said:
This whole process has been very frustrating. Is this the price you pay for rooting your device? Making simple system updates into a maze?
Click to expand...
Click to collapse
[size=+1]OTAs are meant for stock installations - including a stock recovery. PERIOD.[/size]
Interpret that as you desire. It is unreasonable for you to expect that you can diddle with your phone any way you please, and a patch install upgrade methodology will be robust in the faces of arbitrary changes on your part. You are the person creating the maze, not Google.
Moreover, it is your choice to take an upgrade - it's not mandatory. My guess is your tablet was quite pleasing to you before any OTAs started rolling out. Nobody is forcing you to do anything.
OK, one last thing. It is still possible that a manual OTA can succeed on your phone if it is lightly rooted - but there are no guarantees. The procedure does not require you to wait around until an OTA arrives on your phone, but it is not for the faint-hearted:
1) Download the appropriate Stock OTA File.
2) Re-install the stock recovery onto your tablet. You will have to dig it out of the Google full factory image for the version of the OS you are currently running. (available here)
Code:
fastboot flash recovery factory-4.2.1-recovery.img
3) Soft-boot into a custom recovery, e.g.
Code:
fastboot boot openrecovery-twrp-2.4.1.0-grouper.img
5) Using the command line and adb to communicate with the soft-booted recovery, create a recovery command file:
Code:
C:\myPCsux> adb push 6ece895ecb23.signed-nakasi-JDQ39-from-JOP40D.6ece895e.zip /cache/update.zip
C:\myPCsux> adb shell
# cd /cache/recovery
# cat > command
--update_package=/cache/update.zip
^D # ( that is a Control-D character )
# sync
# reboot recovery
This will either succeed or fail. Based on your comments though, you might just want to overflash a Stock-derived ROM over the top of your existing ROM (a "no-wipe" install).
[ROM][Factory Image][4.2.2] Nakasi -::- Odex, Deodex, Rooted -::- teshxx (02/14/13) <-- NOTE for WiFi (nakasi/grouper) ONLY
good luck with your tab.
Someone once said "Rooting is a lifestyle". There's some truth to that; it eats up your time. Perhaps it is not for you.
Thanks, bftb0.
Looking through your list of reasons for why my OTA might not work, none of them applied to me.
I didn't install any custom recovery (didn't install Clockwork Mod recovery specifically to avoid dealing with flashing roms) or kernels or modify any partitions, nor to my knowledge changed any files in the /system section.
I think I'm going to give this update a week or so to pop up on my update menu before I start tinkering again.
Don't get me wrong - I enjoy this kind of tinkering, and all the perks of rooting, but my knowledge is extremely limited, which is what makes it frustrating trying to find information. The only thing I've done before this is install Cyanogen on my HP Touchpad.
Anyway, do I need to install CWM recovery to flash (overflash?) that 4.2.2 rom you linked?
if you haven't done anything other than rooting(i.e. copying a file su to it), OTA would go through. Your problem is about the download process. It can go wrong for many reasons from the download is bad to what saved to the temp area(where the download is) is bad(rare but still possible).
chimpanzeexda said:
if you haven't done anything other than rooting(i.e. copying a file su to it), OTA would go through. Your problem is about the download process. It can go wrong for many reasons from the download is bad to what saved to the temp area(where the download is) is bad(rare but still possible).
Click to expand...
Click to collapse
That's all I've done, root and unlock bootloader. The download only showed up when I cleared data and force stopped the "Google Services Framework" process. I reboot the system, and check for the update and nothing is there.
well, sounds like you have to flash it manually using fastboot then.
That said, I myself have no intention of doing the update any time soon as I don't find any specific problem with 4.2.1 and there isn't any specific feature i want in 4.2.2
Horadrius said:
Anyway, do I need to install CWM recovery to flash (overflash?) that 4.2.2 rom you linked?
Click to expand...
Click to collapse
TL;DR Yes and No.
People that use toolkits seem to use hard-flashed installs of custom recoveries, as they don't really understand what goes on under the hood, even if the toolkit offers them a means to soft-boot any image the toolkit operator downloads. (I assume that the toolkits probably allow this; as I don't use them I don't know for sure.)
What I am saying is that the answer depends on your knowledge. So long as you have an unlocked bootloader, you can soft-boot any boot image you like - including custom recoveries.. (This also pre-supposes correctly-functioning device drivers, but that is a Windows/user training issue, it has nothing to do with Android).
When I say soft-boot, I mean that the image is transferred to the tablet, which then hands over control and starts executing that image - but it is not "flashed" to Flash memory, so the next time a boot occurs, the same boot images are still stored in either "boot" or "recovery".
In this configuration, the phone should be much more likely to complete an OTA as it will have the stock recovery present most of the time, and only temporarily present when you attach to your PC and kick things off with a custom recovery.
The OTA could still fail, but it probably would succeed for a very lightly rooted stock configuration (other than problems with losing root).
The only downside to this arrangement is that you can't be flashing roms or making nandroid backups or other forms of rooter activities when you are away from the PC.
For the IT-OCD or obsessive ROM hopper, that could be a good thing.
good luck... the rest is up to you.
Ok, I installed Clockwork Mod from a toolkit because going into fastboot and choosing "Recovery mode" led me to a picture of the Android guy with a red triangle on his back saying "No Command."
I'm just going to install 4.2.2 myself now. Question regarding that link - odex/deodexed - I looked up the difference but can't tell which one is appropriate for me - I'm guessing it's odex because that seems to be closer to stock.
Edit: It worked! Thanks for your assistance, everyone!
IMO, google should not ship odex image now that we have fast enough hardware. odex is just a form of 'pre-compilation' which only benefit first time load(or when the cache is cleared). Too little gain for such a complicated setup.

Nexus 6p stuck on Google logo

I need your help, after upgrading to 7.1.1 the phone is dialed and restarted all the time in this way.
I would appreciate a solution, I leave an exact example of what happens to me.
OEM is not unlocked and debugging mode either because I can not start the phone
My problem is that it does not unlock OEM and I was not active debugging, the phone just let me enter Fastboot but at the time of choosing RECOVERY it restarts
emmafer44 said:
I need your help, after upgrading to 7.1.1 the phone is dialed and restarted all the time in this way.
I would appreciate a solution, I leave an exact example of what happens to me.
OEM is not unlocked and debugging mode either because I can not start the phone
Click to expand...
Click to collapse
Dude try Nexus toolkit my Wugfresh (NRT Toolkit) you have to boot to bootloader and use the application to clean install
I have this same problem. flashed MegaPixel6P, tried using the camera, and then my phone shut off and just keeps rebooting. i think /data and /system are corrupted. any attempt to nandroid backup or restore fails and causes TWRP to reboot.
Alot of users are facing this bootloop issue. So far no one has been able to figure out a pattern that will give us insight into what kind of devices might be affected by this issue. I have created this survey on GoogleForums so far there are very few responses. Please participate to help the community figure out the probable cause for this bootloop
https://docs.google.com/forms/d/1nGAVdnjbkOE1ohvZvqbntb_7afT4p2OzbFIJjJWiy9Q/edit?c=0&w=1
BTW what's your phone's manufacturing date? were you using Magisk or SuHide?
Dadud said:
I have this same problem. flashed MegaPixel6P, tried using the camera, and then my phone shut off and just keeps rebooting. i think /data and /system are corrupted. any attempt to nandroid backup or restore fails and causes TWRP to reboot.
Click to expand...
Click to collapse
If you can get to TWRP, you can just reflash via fastboot (or use NRT). You may be able to apply your TWRP backup afterwards if it is not corrupted.
As for OP, if the bootloader is locked, and "Allow OEM Unlock" is toggled off, your options are slim to none. If this setting was enabled before upgrading then it is still enabled. If it was not, you cannot unlock the bootloader.
v12xke said:
If you can get to TWRP, you can just reflash via fastboot (or use NRT). You may be able to apply your TWRP backup afterwards if it is not corrupted.
As for OP, if the bootloader is locked, and "Allow OEM Unlock" is toggled off, your options are slim to none. If this setting was enabled before upgrading then it is still enabled. If it was not, you cannot unlock the bootloader.
Click to expand...
Click to collapse
Ive tried literally every fix, its dead jim.
Dadud said:
Ive tried literally every fix, its dead jim.
Click to expand...
Click to collapse
Have you tried FORMATTING boot, system, data & vendor and then reflash? Format, not erase/wipe. Move your TWRP backup off to PC and try that. If you are rusty in ADB/Fastboot, then use NRT to do same in advanced tools. If you have a working recovery and your bootloader is unlocked, I would not give up yet. Good luck!
Dadud said:
I have this same problem. flashed MegaPixel6P, tried using the camera, and then my phone shut off and just keeps rebooting. i think /data and /system are corrupted. any attempt to nandroid backup or restore fails and causes TWRP to reboot.
Click to expand...
Click to collapse
Yeah your problem is a bit different that others and it's worth investigating.
To verify your complete emmc, you could try this command in twrp -> advanced settings -> terminal.
dd if=/dev/block/mmcblk0 of=/dev/null
Basically doing a read test by copying the complete mmc to the void. It should give you a status at the end that you can post here.
By the way, the recommended factory flashing is by using flash-all script that is inside the factory image itself. And you need the latests android SDK.
rchtk said:
Yeah your problem is a bit different that others and it's worth investigating.
To verify your complete emmc, you could try this command in twrp -> advanced settings -> terminal.
dd if=/dev/block/mmcblk0 of=/dev/null
Basically doing a read test by copying the complete mmc to the void. It should give you a status at the end that you can post here.
By the way, the recommended factory flashing is by using flash-all script that is inside the factory image itself. And you need the latests android SDK.
Click to expand...
Click to collapse
nope. i enter the command and it does nothing for about a minute before turning itself off
also, im not some complete n00b, so trust me when i say i've tried everything. any time i restore a backup, once it starts applying just /data or /system it'll shut off and bootloop without finishing.
Dadud said:
nope. i enter the command and it does nothing for about a minute before turning itself off
also, im not some complete n00b, so trust me when i say i've tried everything. any time i restore a backup, once it starts applying just /data or /system it'll shut off and bootloop without finishing.
Click to expand...
Click to collapse
You never know the level of the person you're talking about eh. Just tought you hadn't tried the dd.
So dd shutting down before completing wasn't expected but now if I read again your posts, you said doing a photo shuts down the phone and that's quite typical of power related problems. Sh*t.
Could be the battery not holding discharge. Can the device stay in twrp with screen off? Did you try to let it fully discharge and charge it with a slow charge?
There are a lot of information in /sys/ or dmesg but it won't solve your issue.
Still under warranty?
Dadud said:
nope. i enter the command and it does nothing for about a minute before turning itself off
also, im not some complete n00b, so trust me when i say i've tried everything. any time i restore a backup, once it starts applying just /data or /system it'll shut off and bootloop without finishing.
Click to expand...
Click to collapse
Forget restoring your backup for now. You're not a noob, so transfer your TWRP backup to PC, then FORMAT each partition first, including userdata and then reflash using a Google Imagehere. Ensure you are using the latest version of ADB/Fastboot. You didn't mention you have already attempted to Fastboot flash the NMF26F image. What was your result then? The reason I'm asking is that the Google script erases the partitions- does not format, but running the script will tell you which partition failed during writing.
Huawei Customer Service!!
Had the exact same problem creep up on me this past weekend. I ended up calling Huawei and they are doing a free warranty repair on my phone even though I'm almost two months out of warranty.
Make sure you are on SDK 25, I had the problem synonymous. I have been hunted at Huawei and only when I had already given it I realized that I was not on SDK 25 and I know of some others that was the reason with most.
Whether it was the reason with me, I know tomorrow, the device is back and can be picked up,
Tylog said:
Make sure you are on SDK 25...
Click to expand...
Click to collapse
Yes, the latest ADB / Fastboot is required. The rest of the SDK is not mandatory. You can get a minimalist ADB-Fastboot-Driver install from an XDA dev here.
Also, TWRP updated for Angler recently here. This update solved a persistent backup problem I had with the previous v3.0.2-2
bought it second hand, and the previous owner bought it at launch, so im just a month or so out of warranty. im trying to get the original receipt to attempt to RMA it. Huawei's IMEI lookup says its under warranty till april 4th next year.
Tylog said:
Make sure you are on SDK 25, I had the problem synonymous. I have been hunted at Huawei and only when I had already given it I realized that I was not on SDK 25 and I know of some others that was the reason with most.
Whether it was the reason with me, I know tomorrow, the device is back and can be picked up,
Click to expand...
Click to collapse
Was your phone stuck in Bootloop of death as well? How did you fix it? What do think causes this issue and how can it be avoided?

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