Can my Nexus 7 be revived or not? - Nexus 7 Q&A, Help & Troubleshooting

Hi everyone,
My Nexus 7 3G 2012 was getting unbearably slow.
For this reason I decided to TRY to flash Cyanogenmod on it using the NEXUS ROOT TOOLKIT.
Except for rooting I have NEVER tried this before.
What the result is is:
. I can still charge it
. It will only boot to the Google Logo.
. I still can get into Recovery Mode.
. My PC can no longer recognise this device.
Is there a way for me to revive it, or does it qualify as being hard bricked.
Please understand that besides using NEXUS ROOT TOOLKIT I understand nothing .

As long as you can get to your bootloader you should be fine, unless your having eMMC issues which im running into right now. If this is WugFresh Nexus Root Toolkit you should be able to use that to complete all the tasks needed for last resort restore. First though, since you have recovery, ill assume TWRP since i think that is default for NRT, you can sideload a new rom if you dont have it on your device right now. Install adb/fastboot if you dont have it already.
Google USB Drivers: https://developer.android.com/sdk/win-usb.html
1. Boot into recovery
2. Tap Wipe -> Advanced Wipe -> Check Dalvik Cache, System, Cache, Data (Not Internal Storage, unless you want to wipe your internal SD) -> Swipe to Wipe
3. Go back home once your done (lower left home button)
4. Tap Advanced -> ADB Sideload -> Swipe to Start Sideload
5. Connect to your PC and start ADB from terminal/command prompt.
6. type adb sideload [location of cyanogenmod-update.zip]
7. repeat again with Gapps or boot, then download to device and flash normal in recovery.
If that fails or you just want to return to stock and start over:
1. boot into bootloader (turn device off, press vol down + pwr)
2. If you have had the drivers installed before then you should be fine, when the device is booted into recovery or just booting (before bootloader) your computer may not recognize it but should once bootloader is loaded.
3. connect to computer and select the option under Restore/Upgrade/Downgrade: Current status: Device Soft-Bricked/Bootloop and click Flash Stock + Unroot
4. Follow NRT prompts

Hi RLM703,
Because of your easy to follow instructions I was able to restore my Nexus.
I had to use the 2nd part of your instructions and return to stock.
My PC did not want to recognize the device.
In the PC Device Manager I finally got him to recognise MTP_USB_Device.
I was so happy to see the four balls spinning again.
I guess burning your fingers is a way to learn.
I will have to put my hands back in the fire again get Cyanogenmod.
I am very gratefull for your assistance.
THANK YOU VERY MUCH !

Related

Nexus one is not detected in ADB mode, yet detected in fastboot

Now I know what you are thinking: Well you need to install the drivers. Well that's all said and good, except the problem is when I boot int ADB (hboot? Unsure of what to call it.) There is no hardware at all being installed. At all. There isn't any devices that are connected and the computer doesn't detect anything. My problem is that my power button is broken, and I'm not quite able to get a new phone yet. Because of this, I cannot boot into recovery to flash a new rom, nor can I install Blackrose to use the trackball to avoid this problem. I'm just basically stuck because my phone is now a useless brick because I cannot flash a rom since I wiped my phone. Ideas?
try PASSIMG method?
will this help getting to recovery to flash rom without pwr button
http://forum.xda-developers.com/showthread.php?t=1419813
rugmankc said:
will this help getting to recovery to flash rom without pwr button
http://forum.xda-developers.com/showthread.php?t=1419813
Click to expand...
Click to collapse
Ha the ironic thing is I bought this and used it to wipe my phones rom because I was planning on installing blackrose and then QND. Sadly nope, because I can't get to the recovery itself because I can't press recovery on the bootloader bit.
////////////////
I'm unfamilliar with the Passimg method..got any links? I did a search but couldn't find anything.
Passimg is in wiki under nexus one, never used it--yet
So, not sure if it will help
Yeah not sure if it will work. If I read it correctly the OP wipe his phone clean, no OS or anything on it and can't get into recovery. I only suggest PASSIMG hopefully the phone pick it up upon reboot while holding down the VOL DOWN button.
ADB is a daemon that runs in OS, after the kernel boots.
You're booting into HBOOT. So you won't get anything but fastboot. This is normal and how it should be.
You can either use PASSIMG method, or open your phone and fix the power button for $30-something + having good hands, or even for $0 + thin wire + soldering equipment + very good hands, and optional microscope.
in this case would you be able to use fastboot boot recovery.img and restore a backup or flash a rom?
If you have unlocked bootloader - yes, by all means. But not without it.
The problem is that if power button failed, and bootloader isn't unlocked - you can't unlock it anymore, the procedure requires pressing power button to confirm.
did you try this tut on nexus one wiki?
http://forum.xda-developers.com/wik...des_&_Tutorials#Unroot_.2F_Restore_your_Nexus
Unroot/restore
cheers
Question: If your power button doesn't work - how do you currently turn ON your phone?
Let's keep it simple and try the obvious first. Is USB Debugging turned on in the phone?
Go to Menu -> Settings -> Applications -> Development -> (check) USB Debugging.
2nd, make sure you have the android SDK installed on your computer (if so, download the usb drivers with the androidsdk app that's included).
You can also right click My Computer -> Manage -> Device Manager -> Make sure under Android Devices yours is listed and that there are no yellow question marks. If there is, do the android sdk drivers step and then right-click the icon in device manager, choose Update Driver and point it to the android sdk drivers folder.
Finally, ADB works in recovery and when phone it booted but NOT in Bootloader mode.
If you can get ADB working then you can install a custom recovery using Fastboot (in bootloader mode) then click Recovery to boot into the new recovery. Also, while in the recovery or ROM you can use "adb reboot recovery" to boot into recovery menu.
Hit Thanks if this helped.

[Q] Factory image restore fail : stuck at writing system

Hello everyone!
I tried to restore the stock image using Nexus 4 Tool Kit (both the original one and the Wug's one), and everytime I tried, the script stucked at "writing system".
I manually flashed system and userdata images with Wug's tool kit and everything went well but I only have 5Gb memory instead of 16.
Does anyone know why?
Try this http://forum.xda-developers.com/showthread.php?t=2033692
[HOW-TO] Fix internal storage if 16GB now shows 8GB
Sent from my Nexus 4
OP...
In future, don't use a toolkit. Do it yourself
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
4OnTheFloor said:
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
Click to expand...
Click to collapse
When going into recovery the warning sign is the splash screen for stock recovery. This likely means that you have not yet flashed a custom recovery yet, which is necessary to flash CM. First read this guide to unlock the bootloader (if you havent already), then flash a custom recovery (preferably TWRP). After you have installed the recovery, download CM as well as the latest gapps package and place them somewhere on your internal sd. Boot into recovery and go to the wipe menu, then swipe to factory reset. Finally flash the rom and gapps, and then reboot.
4OnTheFloor said:
I'm having a similar problem to the OP - I'm trying to do a factory restore, and am unable to flash the "system" image. I can't boot, recovery mode won't work anymore (I get a red warning sign instead)...
I think all of this has to do with me being naieve and following a youtube video instead of the CM wiki to install CM 10.1.
How can I unbrick my phone?
Click to expand...
Click to collapse
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
noobdeagle said:
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
Click to expand...
Click to collapse
I am using the .bat file... I've also tried the toolkit, and both appear to use the same basic procedure, and they stop at "writing system" no matter what.
Does anyone happen to know how the .bat file and toolkit get access to the phone? ...because I can't see it in adb (I'm guessing it's because I can't boot the phone.) However I can get into fastboot and recovery modes on the device.
I cannot get the device (nexus 4) to boot or connect in ADB mode to my computer. What can I do??
UPDATE - PROBLEM FIXED
I un-bricked my phone
SOLUTION this is what worked for me, your mileage may vary
Install ADB drivers, etc. from Android SDK (google how to do this)
Flash custom recovery (can be done easily with Nexus 4 Toolkit here on XDA) - I used TWRP Touch Recovery.
Once that is done, shut the phone off completely and boot into Fastboot (hold volume down and power)
Use volume keys to select Recovery Mode, then hit Power
In recovery mode:
Wipe > Advanced Wipe > Check off the box beside "System" > Swipe to Wipe
Go back to recovery mode main screen:
Wipe > Format Data > Follow the instructions on the screen
I think this step is what did it. When having problems with partitions, just format everything and start over
Now we should be able to write to the System partition, meaning you can flash a ROM and get your phone to boot again.
Follow the rest of these instructions to quickly flash the stock Android image from Google onto your phone.
Go back to recovery mode main screen, once again:
Reboot > Bootloader > Follow any additional instructions it gives you
Download Google Nexus 4 factory stock image "occam" (Google it)
When that is downloaded, open it with 7zip. Inside there are some files, one of which is called image-occam-jdq39.zip. Inside are some images - unzip those as well. You'll need the system.img file in a bit...
Using Wug's Nexus Root Toolkit (Google it - install it on your Windows PC):
Open the program
Launch advanced utilities
Hit the System button to permanently flash to System partition. Hit "ok" on the window that pops up.
Find the system.img file I mentioned back on step 10 and select that, when prompted, and open it.
If all went well, your device will now boot into the stock Android ROM.
noobdeagle said:
if you are doing a factory restore and DONT need to flash everything individually than don't. yes its good to know how to do it manually but if your flashing everything back just use the script that google provides.
reboot to bootloader/fastboot and run the flash-all.bat file and its all done for you. no toolkits no playing with commands that you dont know properly etc.
if you dont know how to do it right pick the least complicated option.
Click to expand...
Click to collapse
I too am stuck at writing system. I"m not sure what you mean when you said "run flash-all.bat". Where do I get that?
Thanks.
Soundchasr said:
I too am stuck at writing system. I"m not sure what you mean when you said "run flash-all.bat". Where do I get that?
Thanks.
Click to expand...
Click to collapse
The system takes awhile to write, how long have you guys wait before you say its "stuck"?
Sent from my Nexus 4 using Tapatalk 4 Beta
About 20-25 minutes.
Yea, that's way too long.
Sent from my Nexus 4 using Tapatalk 4 Beta
Stuck, but working
I was flashing the 4.3 image using the included flash-all.bat (but I edited it to remove -w parameter so that it wouldn't wipe my data).
In the 'writing system' step, the command window got stuck. In the phone screen, at the bottom, it said 'writing' for a while and then that also went away. I waited for ~40 min, and still the command window was at 'writing system', so I closed the command window, and booted my phone by selecting start from the bootloader.
And voila! It worked. Booted in under a minute, the flash was a success, I got JB 4.3 without losing any of my data.
Lost my root and custom recovery though. But I knew that would happen. Gonna try SuperSu for 4.3 now, after flashing TWRP.
Had the same problem, tried everything! With my tiny powers, but it kept stucking at "writing system" . I thought that I bricked the device, so for the last hope, I installed WugFresh's Nexus Toolkit and did a Fast Stock + unroot. It Installed everything flawlessly! I'm gonna donate to that guy! He's a godsend savior.

bootlooped & os wiped :( help pretty please

edit 3:
1a) i still can't find my /sdcard on my laptop's "my computer"... it recognizes the android device, but nothing shows up as the nexus internal sdcard drive.
2a) still not rooted
3a) need lte radio...so i'll go read up on that
edit 2: SOLVED!!! (i can't edit the title bar) but 4.2.2 os is back
edit 1:
ok, guys, a little help here please. i posted in a couple of threads but got no response...so if you can please offer advice, i'd appreciate it...worse case scenario, i'll have to pay a craiglister to help me...but i would rather do it myself. i'll try to explain and provide as much info as possible to seek your advice.
i followed the directions in one of the video/thread, but i am stuck on boot loop (google screen, then X screen forever, os hosed/wiped)
i am reading efrant's thread...but it says i need to enable usb debugging...which i can't since my os is wiped...
successful:
1) i can get into "bootloader"/"start screen" w/ open-chested android (no red exclamation point)...that has fastboot mode
2) unlocked the bootloader
3) installed CWM v6.0.3.5 & accessible
4) my winxp 32bit recognizes the nexus as "android device" under device manager, but i can't find the /sdcard
unsuccessful:
5) i wiped the OS, so CANNOT get back in to enable "USB DEBUGGING"
6) i have no nandroid backup
7) i am unrooted (since i can't get into the os to put in superSU)
8) can't find the /sdcard even though the laptop recognizes the android device.
9) don't have adb installed yet, just the drivers
so where do i go from here?
10) do i need to install adb and push the rom?
11) do i fastboot cmd line it?
12) how do i move the 4.2.2 rom over if i can't see the nexus' internal sdcard on my laptop? nothing shows up under "my computer" even though the android device is recognized.
thank you all for your help and advice. will check back periodically when i get wifi access...(nexus was my only net connection...so i am hosed to say the least)
This is what you need to do:
1. Setup adb.
2. Download ROM: here or here.
3. Boot the phone into cwm (hold volume down + power, use volume keys to highlight recovery mode, then power to select it). Use this command to copy the rom to the phone:
Code:
adb push nameofROM.zip /sdcard
4. In cwm choose wipe data/factory reset, wipe cache partititon, advanced>wipe dalvik cache, install zip from sdcard, look for the rom you pushed, select it, and flash it.
successful thank you all
haha, thanks chromium... i just read the same reply from another post was going to do the adb push, but
i just tried efrant's long way again using fast boot and it is successful ... the directions about unzipping was a bit unclear but did it anyways and it works now. thank chromium for your reply.
but i still can't find my /sdcard in "my computer" w/ the nexus hooked up...???

[Q] Stuck in boot loop - Save Photos?

Hi,
my Nexus 4 is stuck in a boot loop since 2 days. I found it turned off and assumed it crashed (has done that once or twice before), but after turning it on it's gets stuck on the boot up screen. I've tried restarting it numerous times, left it on the boot screen for hours - nothing.
I can access the recovery mode and according to most things I've found while searching the internet for a solution a "wipe data/factory reset" would hopefully do the trick, but the thing is... I haven't backed up my device in ages. (Stupid, I know.) I'm travelling and took a lot of pictures that I would hate to loose.
Is there any way to save them? I don't care for app data or anything else.
I wouldn't mind rooting it (was thinking about doing that anyway), but I'm pretty much a n00b when it comes to Android, haven't done more with it than simply using it.
I have read up quite a bit about rooting in the last two days (here on the forum and everywhere else) but I'm still not sure how exactly to do it, since all methods seem to require unlocking the bootloader and therefore deleting my photos (or just don't give much in the way of explanation).
I'm using a mac, but if necessary I also have Windows installed. I have installed Adb and fastboot following this guide.
The phone is not rooted, I don't have developer options or USB debugging enabled and it's running on 4.4.4.
I would be really grateful for help.
If you can boot into the bootloader you can install a custom recovery, I'd recommend twrp. Then booting into the custom recovery you could use adb to pull files off your device . But your bootloader needs to be unlocked. If it isn't I'm afraid you won't be able to get your photos
Sent from my SAMSUNG-SGH-I957 using XDA Free mobile app
bootloop issue
A.
Try to go into safe mode and backup your data.
Boot into Safe Mode:
1. Press/Hold Power button until power menu shows up
2. Tap/Hold Power off option
3. Choose OK to reboot in safe mode
B.
For bootloop problem:
Boot into Stock Recovery
1. Power+VolUp while booting to enter recovery
2. You can release buttons after you see Google on screen
(Note: Must be this sequence Press/Hold Power, THEN Press/Release VolUp, release Power)
3. Android fallen down screen - VolUp to toggle recovery menu
Now wipe Cache & Dalvik Cache in recovery and reboot the phone.
C.
If the (Option B) does not solved then try to flash the stock rom with the below given mentioned steps.
First download any stock rom and also the related usb drivers. Install the drivers into the PC.
Boot into the bootloader.
Open (fastboot.exe) Cmd prompt as admin. Put the stock rom into that particular folder.
fastboot flash bootloader filename.img
reboot the phone and return back to the bootloader.
Then, we will flash all other partitions.
fastboot flash radio filename.img
Again reboot the phone and go back into the bootloader
fastboot flash boot filename.
fastboot flash recovery filename.img
fastboot flash userdata filename.img
fastboot flash system filename.img
If you want to relock the bootloader of your device after flashing the device, put the device back in fastboot mode. Then type in the following command in the Terminal or Command Window you had opened earlier -:
fastboot oem lock
This will re-lock the bootloader of your Nexus device, restoring your warranty and putting the device back to complete stock.
I hope this helps you out.
Thank you, but is there a way to boot into safe mode if the phone isn't turned on? I can not get to the power menu since I can't turn the phone on...
I can only access the recovery menu.
Data backup
Alternate method you can do is that you have to download a software by name 'DROID EXPLORER' - (try to google it) you will find this software from the internet. Then install the software on your PC or Laptop. Once you open the software it will take some time to download the sdk files from the internet then install the windows sdk files also.
Later you go into the recovery mode with the usb cable connected to your PC. Then open the Droid Explorer software you will see your phone connected picture. Now double click and open it go to sdcard and copy all your pictures and other files to your system.
Finally, Once you backed up all your files now you can reflash with the proper rom from the recovery mode. From directly inserting the rom.zip file into the sdcard and run the custom rom after you wipe the partitions properly in recovery.
Note: Before wiping the partitions always unmount the system, data, cache and then wipe it.

Nokia 6.1 plus Stuck on TWRP Splash screen. PLEASE HELP!!

Hello everyone,
I have recently unlocked the bootloader on my Nokia 6.1 plus, and rooted it. I then went ahead and installed TWRP ( App install method - found in the twrp website ). However after I rebooted my phone has been stuck on the TWRP splash screen , I Tried going to download mode , and that just got me back to the twrp splash screen. I turned off the phone and powered it on again , same result . Whatever I do it just keeps going back to the TWRP splash screen .. What is even worse is that my device can not be recognized by my pc while stuck on the splash screen , thus I can not use ADB or Fastboot ...
I am feeling really hopeless and stuck , Help would be much appreciated!! Thanks
Now, dissemble the device and enter edl mode
Sent from my Nokia 6.1 using Tapatalk
MaxTurner771 said:
Hello everyone,
I have recently unlocked the bootloader on my Nokia 6.1 plus, and rooted it. I then went ahead and installed TWRP ( App install method - found in the twrp website ). However after I rebooted my phone has been stuck on the TWRP splash screen , I Tried going to download mode , and that just got me back to the twrp splash screen. I turned off the phone and powered it on again , same result . Whatever I do it just keeps going back to the TWRP splash screen .. What is even worse is that my device can not be recognized by my pc while stuck on the splash screen , thus I can not use ADB or Fastboot ...
I am feeling really hopeless and stuck , Help would be much appreciated!! Thanks
Click to expand...
Click to collapse
You shouldn't have installed TWRP on a A/B device let alone install it via the app. It's okay, We're here to help.
If you have OSTLA in your PC, Just open it up and load all files and select to flash the stock ROM. Select Normal Download/Erase User Data options and if the option to Chech AP status is enabled, Disable it. Select on start or the option to flash stock ROM.
Power off your phone completely. If you can't, Then press the volume+ button and power button. Once the screen goes off, Immediately connect phone to PC.
Phone should now reboot into download mode and stock rom should start flashing. Then it's just a matter of waiting for it to flash and reboot.
CarbonGTR said:
You shouldn't have installed TWRP on a A/B device let alone install it via the app. It's okay, We're here to help.
If you have OSTLA in your PC, Just open it up and load all files and select to flash the stock ROM. Select Normal Download/Erase User Data options and if the option to Chech AP status is enabled, Disable it. Select on start or the option to flash stock ROM.
Power off your phone completely. If you can't, Then press the volume+ button and power button. Once the screen goes off, Immediately connect phone to PC.
Phone should now reboot into download mode and stock rom should start flashing. Then it's just a matter of waiting for it to flash and reboot.
Click to expand...
Click to collapse
I had a problem in that my device would never be recognized by my pc even when i finally manage to put in download mode, However after many days trying I was finally able to do it , and to use OSTL.... so thank you!!
I am wondering now how I will do the thing i wanted from the start which is to flash a kernel if i shouldn't use twrp?
MaxTurner771 said:
I had a problem in that my device would never be recognized by my pc even when i finally manage to put in download mode, However after many days trying I was finally able to do it , and to use OSTL.... so thank you!!
I am wondering now how I will do the thing i wanted from the start which is to flash a kernel if i shouldn't use twrp?
Click to expand...
Click to collapse
So to my understanding what you want to achieve is flash a custom kernel on stock rom. And after you messed up your stock recovery by installing twrp, if you have flashed stock rom using ostla then follow these steps.
First without tampering anything finish an ongoing/pending ota/sp update cause after you install custom kernel you phone won't be able to install OTAs. The last sp is of june so install that.
Now coming to installing the kernel-
*Place your twrp and kernel zip file into your adb folder*
1. Setup usb debugging and connect your device normally to your pc, check if the device is communicating with pc type in "adb devices" and allow on your phone for authorisation.
It should reply with your serial on cmd window.
2. Type in "adb reboot bootloader" that should put your device in download mode.
3. Type in "fastboot boot twrp.img" (replace twrp.img with whatever your twrp image file name is)
4. Go to advanced and select adb sideload, swipe to start.
5. Now move to your cmd window and type in "adb sideload kernel.zip" (replace kernel.zip with whatever your kernel zip file name is)
Wait for the process to finish
Now press home go to wipe>advanced wipe select dalvik cache and swipe to wipe
again press home and select reboot, select system
Now final important step
6. don't swipe, select "do not install twrp"
D-Mi said:
So to my understanding what you want to achieve is flash a custom kernel on stock rom. And after you messed up your stock recovery by installing twrp, if you have flashed stock rom using ostla then follow these steps.
First without tampering anything finish an ongoing/pending ota/sp update cause after you install custom kernel you phone won't be able to install OTAs. The last sp is of june so install that.
Now coming to installing the kernel-
*Place your twrp and kernel zip file into your adb folder*
1. Setup usb debugging and connect your device normally to your pc, check if the device is communicating with pc type in "adb devices" and allow on your phone for authorisation.
It should reply with your serial on cmd window.
2. Type in "adb reboot bootloader" that should put your device in download mode.
3. Type in "fastboot boot twrp.img" (replace twrp.img with whatever your twrp image file name is)
4. Go to advanced and select adb sideload, swipe to start.
5. Now move to your cmd window and type in "adb sideload kernel.zip" (replace kernel.zip with whatever your kernel zip file name is)
Wait for the process to finish
Now press home go to wipe>advanced wipe select dalvik cache and swipe to wipe
again press home and select reboot, select system
Now final important step
6. don't swipe, select "do not install twrp"
Click to expand...
Click to collapse
This might sound like a stupid question but I am a major newbie when it comes to this,
Right now i managed to compile a custom kernel and I have a boot image along with the kernel, so to get the kernel.zip do I just zip up all these files? also I read that I could simply flash the image by rebooting to my bootloader and then using " fastboot flash boot boot.img " would this work , and if so does this mean i don't need twrp...
Thanks again for the help , it is much appreciated
MaxTurner771 said:
This might sound like a stupid question but I am a major newbie when it comes to this,
Right now i managed to compile a custom kernel and I have a boot image along with the kernel, so to get the kernel.zip do I just zip up all these files? also I read that I could simply flash the image by rebooting to my bootloader and then using " fastboot flash boot boot.img " would this work , and if so does this mean i don't need twrp...
Thanks again for the help , it is much appreciated
Click to expand...
Click to collapse
If you just want to flash your custom kernel there's no need to flash a boot.img if you've a running rom installed. You can flash the kernel.zip it via twrp or adb sideload via twrp.
Sorry for the late reply, if you have a bootloader-unlocked 6.1 Plus you should join Nokia 6.1 Plus community on telegram you'll get much faster response from the community regarding your device ?

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