Database Users

Troubleshooting for Newbies (having a "wtf!?" moment?)

Most of this information has been repeated so many times. But I wanted to make a short list of all the silly mistakes and simple oversights I’ve made over time.
(I make mistakes constantly - there are probably some mistakes in this very post - and I usually search around and try to find my way out of them. I will edit this post whenever I run into a problem. If anyone has any input, I will gladly add it to this post.)
YOU CAN NOT COME BACK FROM UNLOCKING YOUR BOOTLOADER:
If you ever think you’ll need to or want to “relock” your bootloader, you can’t.
Alternative root method:
VISIONary
(when you launch the application, you can leave everything unchecked)
Alternative recovery option:
ROM Manager (in the market)
ALWAYS DO A NANDROID/CLOCKWORKMOD BACKUP!
It will restore everything the way you had it if you F something up.
Want to go back to original shipping, but followed this guide, downloaded the linked file and can’t find the image files?
They’re not in that file. I don’t know why. Go here and download FRG33, decompress it and use the contents to follow the tutorial
Are you getting a “verification failed” error when you try to apply an update.zip in recovery?
Mount your SD card to your computer, download whatever file you were trying to apply directly to it (don’t download it and then drag it), and rename it to “update.zip”.
If you’re using Windows, make sure “hide extensions for known file types” is unchecked in your folder options within the Control Panel. You’ll keep having problems if it’s named “update.zip.zip” and you didn’t realize it
If you're still having problems, try this download of the stock FRG83 update.
<Added 11/18> I had another facepalm moment. If you downgraded back to FRG33 and you get an "assert failed" error, flash the recovery.img from that FRG33 package you extracted. (found this solution here)
Did you flash a ROM or go back to stock, start up your phone and noticed that you’re stuck on Edge?
Go to Menu>Settings>Wireless and Networks>Mobile Networks>Network Operators>(choose your carrier), wait.
Trying to copy something from your SD Card to /system/app (for instance)?
If you use the “cat” command, DON’T FORGET THE “>” SYMBOL. Nothing awful happens as far as I know, but it’s unnerving to watch the terminal puke all over itself.
Code:
cat /sdcard/thing.apk > /system/app/thing.apk
If you’re new to Linux and/or Android and are removing apps:
BE CAREFUL with the “rm” command. Once it’s gone, it’s gone.
You can always rename (technically, "move") the files instead:
Code:
mv /system/app/thing.apk /system/app/thing.apk.bak
Switch the commands to get it back
Code:
mv /system/app/thing.apk.bak /system/app/thing.apk
And don't forget to mount /system as read and write. To do that:
Windows: (must have drivers installed, Nexus One drivers are in the SDK)
Code:
adb shell
su
Linux: (no drivers necessary)
Code:
./adb shell
su
Code:
mount -o remount,rw -t yaffs2 /dev/mtdblock3/system /system
Don't forget to mount /system as read-only when you're finished. To do that, use the same code but replace "rw" with "ro" (without quotations of course)
Having trouble connecting with adb?
In Linux, you need to be in the SDK directoy (mine is in ~/AndroidSDK/tools). In Windows, you need to have ;C:\AndroidSDK\tools in the system path, within Environmental Variables (right-click on Computer>Properties>Advanced>Environmental Variables)
Unplug the device
In Linux, cd to ~/AndroidSDK/tools (or whatever you called it) enter:
Code:
sudo ./adb kill-server
sudo ./adb start-server
Plug in the device
Code:
sudo ./adb devices
In Windows:
Code:
adb kill-server
adb start-server
Plug in the device
Code:
adb devices
Device not found?
Did you enable USB Debugging in Menu>Settings>Applications>Development?
Trying to install an .apk but it just won’t work?
Try the “adb install” method, or push the apk to /system/app. If the app force closes or doesn’t work, just remove it
Code:
rm /system/app/thing.apk
Using Ubuntu (or another Linux distro), trying to mount your SD through Amon-Ra's recovery, but it won't mount?
Disable USB-MS toggle, unplug the phone, reboot your computer, try again.

Can I kiss you?
Seriously though I really appreciate it when the guys on here take time out of their day to post helpful guides like this since it prolly took 30 min at least. Thank you very much for doing this it might have been just what I'm looking for

ap3604 said:
Can I kiss you?
Click to expand...
Click to collapse
Nope.
ap3604 said:
Seriously though I really appreciate it when the guys on here take time out of their day to post helpful guides like this since it prolly took 30 min at least. Thank you very much for doing this it might have been just what I'm looking for
Click to expand...
Click to collapse
I'm glad you appreciate it. I'm not technically one of the guys on here. I've been on XDA in different device forums for a little while but have always been absorbing the information and never giving anything back. This is my first try. I can only dream of being a developer when I grow up, and solving more serious problems.

ahorriblemess said:
Want to go back to original shipping, but followed this guide, downloaded the linked file and can’t find the image files?
They’re not in that file. I don’t know why. Go here and download FRG33, decompress it and use the contents to follow the tutorial
Click to expand...
Click to collapse
Just wondering ahorriblemess, I looked over the guide and it says:
"This will do the followings to your Nexus One:
1. Reset your system files to the original system files.
2. Reset your kernel/boot image to the original shipping boot image.
3. Reset your recovery to original recovery (if you wish)."
Since I'm a real idiot... does this guide get your baseband / radio back to original (january) shipping image as well?
I didn't see it in those 3 things and have the 5.12.00.08 version so I wanted to make sure following that guide would reset the radio baseband back to the original (january) version as well before I did it.
Now all I need to do is figure out how fastboot works and I'm gold!

ap3604 said:
Just wondering ahorriblemess, I looked over the guide and it says:
"This will do the followings to your Nexus One:
1. Reset your system files to the original system files.
2. Reset your kernel/boot image to the original shipping boot image.
3. Reset your recovery to original recovery (if you wish)."
Since I'm a real idiot... does this guide get your baseband / radio back to original shipping image as well?
I didn't see it in those 3 things and have the 5.12.00.08 version so I wanted to make sure following that guide would reset the radio baseband back to the original (january) version as well before I did it.
Now all I need to do is figure out how fastboot works and I'm gold!
Click to expand...
Click to collapse
I don't know. I'm in no way an expert at any of this. My intent with this thread was to compile all of the sort of simple things that I've overlooked in the past. Usually I've found solutions to those problems scattered all over the place, so I just thought it would be helpful to put them all in one place in case anyone ever has the same problems I've had.
I have a pretty good feeling about the answer, but I don't want to share it in case you decide to act on it and it's wrong.

Thanks a ton!

Rooting Gingerbread 2.3.6 (4.5.141) - The Complete Guide

Having just purchased another Atrix that was running stock Gingerbread 2.3.6 (4.5.141), I was frustrated by the lack of a complete rooting guide and appropriate files. There is a guide in this forum (Link) which is based on an article from Android Advice (Link), but I noticed that both lack a lot of basic information for the inexperienced user. Also, the zip file available from Android Advice was missing a key file (Superuser!). So, I made a guide.
This may look complicated, but is super easy. If you don't feel comfortable using this method, you can use this automated tool (yes, it works on 4.5.141). It won't be as satisfying, or even feel good. You won't learn anything, but you will be rooted. Download tool here (link in OP is broken).
Pre-work:
1) Read the xda Atrix Beginners Guide (then read it again)! (Link)
2) Download and install 7zip. (Link)
3) If they are not already installed on your PC, download and install the Atrix drivers for Windows. (Link)
4) Download the attached files (sorry, had to break them in to two files due to forum size constraints). Create a new folder on your hard drive named "Android" (c:\Android). Extract both attached zip files to this folder (all the files need to be in "Android", not in a sub folder).
5) On your phone go to Settings, Applications, Development, then tick USB Debugging.
Notes:
Do not type quotes.
After each command hit enter.
Be mindful of spaces.
You can simply copy each command and paste in to the command prompt.
If you encounter any errors after entering a command, just ignore and keep going (assuming you entered the command properly).
Work:
1) Attach your phone to the PC via USB. In the USB settings make sure USB Mass Storage is selected.
2) Reboot phone while holding volume down until you see "fastboot".
3) Press volume up to initiate fastboot.
4) On your PC click the Start menu, then in the search box type "cmd"
5) In the command prompt type "cd c:/android"
6) "fastboot.exe flash preinstall preinstall.img"
7) "fastboot.exe reboot"
8) Wait for phone to reboot.
9) "adb shell"
10) "/preinstall/dosu". If you get an error (I did), type "/preinstall/su"
11) "/bin/mount -o remount,rw /system"
12) cp /preinstall/su /system/bin/"
13) "chmod 6755 /system/bin/su"
14) "PATH=/system/bin:$PATH pm install /preinstall/Superuser.apk"
15) Reboot phone.
16) On your phone go to your apps and make sure the Superuser icon is there. Open the app, go to settings, then update the SU binary.
17) Open a terminal emulator, then type "su" and hit enter. You should see "#" if you are rooted. Or, download Root Checker from the Play Store.
My phone rebooted itself after step 11, so I had to re-open the adb shell.
I copied and pasted the text from the command prompt for reference (attached).
If I missed anything or have any errors, let me know and I will update the post.
Good luck!
Note: If you experience problems with updating superuser after rooting, try going in to Manage Applications and clear Superuser data. If that doesn't work go to the Play Store and Install Superuser Update Fixer.
Downloads:
My Atrix AFH Folder
*****

Thanksssss
Just want to show my appreciation. Your guide followed step by step worked flawlessly on my atrix. Ive been trying to root this darn thing for about a week and a half with no luck. found your guide and worked perfect first time around. Thanks..
David

Thanks for the information. Just wanted to do this, and while reading the procedure, I found that there is no Superuser.apk in the attachments. Do I have to get it from some other place.
Thanks
upndwn4par said:
Having just purchased another Atrix that was running stock Gingerbread 2.3.6 (4.5.141), I was frustrated by the lack of a complete rooting guide and appropriate files. There is a guide in this forum (Link) which is based on an article from Android Advice (Link), but I noticed that both lack a lot of basic information for the inexperienced user. Also, the zip file available from Android Advice was missing a key file (Superuser!). So, I made a guide.
Remember to click THANKS if this guide helped you!
Pre-work:
1) Read the xda Atrix Noob Guide (then read it again)! Link
2) Download and install 7zip. Link
3) If they are not already installed on your PC, download and install the Atrix drivers for Windows. Link.
4) Download the attached files (sorry, had to break them in to two files due to forum size constraints). Create a new folder on your hard drive named "Android" (c:\Android). Extract both attached zip files to this folder (all the files need to be in "Android", not in a sub folder).
5) On your phone go to Settings, Applications, Development, then tick USB Debugging.
Notes:
Do not type quotes.
After each command hit enter.
Be mindful of spaces.
Work:
1) Attach your phone to the PC via USB. In the USB settings make sure USB Mass Storage is selected.
2) Reboot phone while holding volume down.
3) Press volume up to initiate fastboot.
4) On your PC click the Start menu, then in the search box type "cmd"
5) In the command prompt type "cd c:/android"
6) "fastboot.exe flash preinstall preinstall.img"
7) "fastboot.exe reboot"
8) Wait for phone to reboot.
9) "adb shell"
10) "/preinstall/dosu". If you get an error (I did), type "/preinstall/su"
11) "/bin/mount -o remount,rw /system"
12) cp /preinstall/su /system/bin/"
13) "chmod 6755 /system/bin/su"
14) "PATH=/system/bin:$PATH pm install /preinstall/Superuser.apk"
15) Reboot phone.
16) On your phone go to your apps and make sure the Superuser icon is there. Open the app, go to settings, then update the SU binary.
My phone rebooted itself after step 11, so I had to re-open the adb shell.
I copied and pasted the text from the command prompt for reference (attached).
If I missed anything or have any errors, let me know and I will update the post.
Good luck!
Click to expand...
Click to collapse

RE super user pkg.
aksma said:
Thanks for the information. Just wanted to do this, and while reading the procedure, I found that there is no Superuser.apk in the attachments. Do I have to get it from some other place.
Thanks
Click to expand...
Click to collapse
Well for me what happen is down at the bottom he has two links for two of the files you need to zip. in one of those, there is a superuser file. When doing the cmd commands at the end you will end up installing the superuser. The best thing to do which really helped me was to download the command prompt text file, that way you can mimic exactly what you see. Hope this helps.
-David

Thanks David, I just started doing the same. Lets see how it goes.

good luck
aksma said:
Thanks David, I just started doing the same. Lets see how it goes.
Click to expand...
Click to collapse
no problem. Believe me i was in the same position. I must of tried rooting mine like 15 times to no avail ,then i found this thread and it worked.

Worked like a Champ!! Thanks David... Was quick and easy.. ..

excellent
aksma said:
Worked like a Champ!! Thanks David... Was quick and easy.. ..
Click to expand...
Click to collapse
Good deal. So glad i found this thread haha.

Glad I could help!

good one.

Thanks a lot
was so expected that this guide

Going to give it a try
I read through everything and think I have somewhat of a clue on what I need to do..LOL. Whatever the results I will post back and let you know. I have had my atrix since it was first released and have never had the time to root it as I cannot be without a phone couldn't take a chance.
I retire soon so hopefully will have more time to get invovled in things as this is a great forum.
Mac

Thanks!
Rooted phone

dmacdog said:
I read through everything and think I have somewhat of a clue on what I need to do..LOL. Whatever the results I will post back and let you know. I have had my atrix since it was first released and have never had the time to root it as I cannot be without a phone couldn't take a chance.
I retire soon so hopefully will have more time to get invovled in things as this is a great forum.
Mac
Click to expand...
Click to collapse
Welcome to the wonderful world of messing with your phone!
You really can't harm your phone trying to root it. If you type a command wrong, just re-type it. No worries. There are lots of good guides out there for whatever you want to do. The noob guide (linked on the first page) is a great place to start. And there are plenty of members willing to help.
Let us know how things go!

thanks
that was cool!

very usefull!! thank you!

very useful
Sent from my MB860 using xda premium

condor7272 said:
that was cool!
Click to expand...
Click to collapse
Yes it is. Awesome feeling to look in your app drawer and see this:

THANKS!!
upndwn4par said:
Welcome to the wonderful world of messing with your phone!
You really can't harm your phone trying to root it. If you type a command wrong, just re-type it. No worries. There are lots of good guides out there for whatever you want to do. The noob guide (linked on the first page) is a great place to start. And there are plenty of members willing to help.
Let us know how things go!
Click to expand...
Click to collapse
followed the directions and am now rooted!!
next to look for boot load unlock - not sure why but 'im gonna figure it out - and then an ics rom or wait for the q3 'official' motorola release . . . decisions

1iJakk said:
followed the directions and am now rooted!!
next to look for boot load unlock - not sure why but 'im gonna figure it out - and then an ics rom or wait for the q3 'official' motorola release . . . decisions
Click to expand...
Click to collapse
Don't unlock your bootloader if you think you will want official Moto ICS update (major hard brick risk).

[GUIDE] Fix "assert failed: apply_patch_check" error

Overview:
This thread is a guide on how to fix the apply_patch_check error message experienced during an upgrade of the Android OS. Specifically, this will detail the steps for an upgrade of Jelly Bean from 4.1.1 to 4.1.2 on the Nexus 7 with CWM Recovery for a user of Windows. I'm sure similar steps will work for other recoveries/upgrades/devices and PC OSes.
You should only bother with this if you don't want to flash the entire system.img file to your phone, which is way easier.
Here is an example of the error message I'm talking about:
Code:
assert failed: apply_patch_check("/system/app/Chrome.apk", "819b34b66335c6faec86404d736a002b8871600", "9d6b55e63b0bf20bea433fb1ee7089f88ab73fb6")
E: Error in /sdcard/03a4eaf95f73.signed-nakasi-JZO54K-from-JRO03D.03a4eaf9.zip
(Status 7)
Installation aborted.
A few notes about the error:
This doesn't have to happen with the Chrome.apk specifically -- it could happen with any app in /system/app or .so in /system/lib.
Those random strings of numbers/letters are SHA-1 hashes of the apk.
The first one is the hash of the apk installed on your device. In my example, this happens to be the version of Chrome that comes with JB 4.1.2.
The second one is the expected hash of the apk that comes with JB 4.1.1.
Cause of the problem:
The reason this error occurs is because the file was somehow modified from its original state. In my case -- and most likely your case -- this was done by Titanium Backup. TB has an option to "Integrate updates of system apps into ROM", which will cause the apk in /system/app (and associated library files in /system/lib, if needed) to be overwritten with the updated apk.
Solution:
Download this zip file which contains the full /system/app and /system/lib directory from the JB 4.1.1 factory image. *
Extract the zip to a location of your choosing on your PC.
In the extracted folder, locate the .apk or .so file referenced in the error message on your device.
Copy this file to your device via your preferred method (USB cable works fine). I put my file in /sdcard/Download.
On your device, use a root file explorer to move the file from /sdcard/Download to /system/app (or /system/lib).
If you don't have a program that can do this, I use ES File Explorer. Be sure to go to Settings > Root Settings and turn on Root Explorer, Up to Root, and Mount File System.
Reboot into your Recovery and try to install the update again.
Repeat steps 3-6 for each subsequent file that produces an error. You will basically need to do this for each app you integrated using TB and maybe a few library files, too. **
* Future updates (above 4.1.2):
Since I won't be keeping the zip file from step #1 up-to-date, here's how to get the directories that I included in the zip for yourself:
Obtain a factory image for your device's current Android version (the version you're updating from).
For JB 4.1.1, this file is called nakasi-jro03d-factory-e102ba72.tgz.
If you're reading this guide at a later date, the JB 4.1.2 file is called nakasi-jzo54k-factory-973f190e.tgz.
You can try your luck at the official Google site, but they seem to only provide the version you're trying to update to, not from.
Extract the .tgz file somewhere on your PC.
Locate the image-naksi-jro03d.zip file and extract that, as well.
In the folder you just extracted from the previous step, located the system.img file.
Download and use a program called sgs2toext4 (View attachment 645320) to convert the system.img to system.ext4.img. ***
Download and use a program called Linux Reader to open system.ext4.img.
Do this by going to Drives > Mount Image > Next > select your file.
It will then be listed under the Hard Disk Drives section in red as "Linux Ext Volume 1".
Navigate to: Linux Ext Volume 1/system.
Right-click on the app (or lib) directory and pick Save > Next > Output to dir of your choice.
You now have the directories that were included with the zip file from Solution step #1, so just follow those steps now.
** How to avoid repeating steps:
If you'd rather not have to try to reinstall after updating only one file, just to find another file that needs updating, try this:
Obtain the /system/app and /system/lib folders from the factory image and save them to your PC.
For the sake of this guide, let's say you save them to C:\factory_app and C:\factory_lib.
Copy the /system/app and /system/lib directories from your phone to your PC.
For the sake of this guide, let's say you saved them to C:\phone_app and C:\phone_lib.
Download the File Checksum Integrity Verifier utility from Microsoft.
Start > Run > cmd
fciv.exe -sha1 -xml factory_app.xml -wp C:\factory_app
fciv.exe -sha1 -xml factory_app.xml -v -bp C:\phone_app
Don't ask me why, but you need to use -bp instead of -wp for the second command.
Don't forget the -v on the second command.
The output of the last command will show you the list of files that are different. These are the files you need to take from C:\factory_app and put into the /system/app directory on your phone.
Do the same for the lib directories (just replace all instances of "_app" with "_lib" in the previous commands).
Summary:
I hope that this post helped some of you who really didn't want to have to flash the system.img or wipe your device just to update. In the future, use TB to back up the original.
I wouldn't normally bother writing up a guide like this (it took almost as long to write as it did to figure out how to do this) but I couldn't find this solution anywhere even though I saw that I wasn't the only person with the problem. Sorry for not posting this guide sooner (update has been out for a while now), but the forum required me to make a bunch of useless spam posts before I could include any links in my guide and I didn't get around to making those posts right away.
*** I would like to thank balamu96m for his guide on extracting data from the system.img file and drphrozen for making the sgs2toext4 program.

Thanks for this. Will try now.
Worked great. Had to copy the apk and odex file.

Good job! It's great to see the steps for Windows users!

Just a heads up that I simply extracted the files I needed from and on my N7 using Root Explorer, without using my PC at all.

Great guide! Method worked perfectly on my Nexus 7 going from 4.1.2 to 4.2, thanks

Please... is there some other way to update the files w/o installing Java on my Windoze PeeCee? I accidentally messed up my YouTube.apk with Titanium Backup... now I can't update from 4.1.2 --> 4.2 JB.
EDIT: JavaPortable FTW... updating (fingers crossed)
EDIT: SUCCESS TY OP!

For anyone who flashed the 4.2 clock/keyboard already
Hey, for anyone who flashed the 4.2 clock and keyboard on their Nexus 7 already and need to roll back to do the 4.2 update, I used OP's method to make a flashable zip that puts the 4.1.2 clock and keyboard back.
Worked perfectly for my Nexus 7 to get me up and running. Hope it helps anyone!
cantthinkofa.com/files/RestoreClockKeyboard.zip

galaxy nexus
Hi can you post a guide for galaxy nexus? Or if it is the same, can you post the link of JB factory image for galaxy nexus? Sorry, I can't find any thread for galaxy nexus, and I don't want to complete flash the stock image since I don't want to wipe my phone.
Thanks in advance!

Nice Guide
perfect, the guide works just fine. Now finally running 4.2.

Awesome guide... Thanks... Happily running 4.2 now aften beeing stuck at libutils.so...
Sent from my Nexus 7 using xda premium

damagno said:
Hi can you post a guide for galaxy nexus? Or if it is the same, can you post the link of JB factory image for galaxy nexus? Sorry, I can't find any thread for galaxy nexus, and I don't want to complete flash the stock image since I don't want to wipe my phone.
Thanks in advance!
Click to expand...
Click to collapse
I don't have a Galazy Nexus, but I think the steps should be the same. Here is a link to the factory images: https://developers.google.com/android/nexus/images#takju . It looks like they now have links for older versions, rather than just the newest images (which is how it was when I made my guide). So that's pretty sweet.

Thanks a lot man, i succeeded to "patch" my system files to update from 4.2 to 4.2.1. I first check what files didn't correspond with fciv (9 files counting both apks and odex) and then replaced them in system/app. In fact they were the apps I previously integrated with tb (learned lesson: never do it if you want to remain stock and receive OTAs). I also noticed many not-matching files in system/lib but i didn't touch them and the update went smooth the same.
Another thing: when in the OP you say it's way easier just to reflash the system.img you mean just run from bootloader "fastboot flash system system.img" (taken from the factory image as usual) or there's some other thing to do in order to fix the system partition in the right way?

GallStones said:
Thanks a lot man, i succeeded to "patch" my system files to update from 4.2 to 4.2.1.
Click to expand...
Click to collapse
I was wondering if you could tell me how you did it? I'm searching a way to install 4.2.1 with no avail as of yet :crying:

GallStones said:
Thanks a lot man, i succeeded to "patch" my system files to update from 4.2 to 4.2.1. I first check what files didn't correspond with fciv (9 files counting both apks and odex) and then replaced them in system/app. In fact they were the apps I previously integrated with tb (learned lesson: never do it if you want to remain stock and receive OTAs). I also noticed many not-matching files in system/lib but i didn't touch them and the update went smooth the same.
Another thing: when in the OP you say it's way easier just to reflash the system.img you mean just run from bootloader "fastboot flash system system.img" (taken from the factory image as usual) or there's some other thing to do in order to fix the system partition in the right way?
Click to expand...
Click to collapse
Yes. I am having the same issue. I cannot update mine from 4.2 to 4.2.1. I wonder to know which original stock image you have used. Can you list a detail procedure?
Thank you very much.
Ric

dev/block/param
legom said:
Overview:
This thread is a guide on how to fix the apply_patch_check error message experienced during an upgrade of the Android OS. Specifically, this will detail the steps for an upgrade of Jelly Bean from 4.1.1 to 4.1.2 on the Nexus 7 with CWM Recovery for a user of Windows. I'm sure similar steps will work for other recoveries/upgrades/devices and PC OSes.
You should only bother with this if you don't want to flash the entire system.img file to your phone, which is way easier.
Here is an example of the error message I'm talking about:
Code:
assert failed: apply_patch_check("/system/app/Chrome.apk", "819b34b66335c6faec86404d736a002b8871600", "9d6b55e63b0bf20bea433fb1ee7089f88ab73fb6")
E: Error in /sdcard/03a4eaf95f73.signed-nakasi-JZO54K-from-JRO03D.03a4eaf9.zip
(Status 7)
Installation aborted.
A few notes about the error:
This doesn't have to happen with the Chrome.apk specifically -- it could happen with any app in /system/app or .so in /system/lib.
Those random strings of numbers/letters are SHA-1 hashes of the apk.
The first one is the hash of the apk installed on your device. In my example, this happens to be the version of Chrome that comes with JB 4.1.2.
The second one is the expected hash of the apk that comes with JB 4.1.1.
Cause of the problem:
The reason this error occurs is because the file was somehow modified from its original state. In my case -- and most likely your case -- this was done by Titanium Backup. TB has an option to "Integrate updates of system apps into ROM", which will cause the apk in /system/app (and associated library files in /system/lib, if needed) to be overwritten with the updated apk.
Solution:
Download this zip file which contains the full /system/app and /system/lib directory from the JB 4.1.1 factory image. *
Extract the zip to a location of your choosing on your PC.
In the extracted folder, locate the .apk or .so file referenced in the error message on your device.
Copy this file to your device via your preferred method (USB cable works fine). I put my file in /sdcard/Download.
On your device, use a root file explorer to move the file from /sdcard/Download to /system/app (or /system/lib).
If you don't have a program that can do this, I use ES File Explorer. Be sure to go to Settings > Root Settings and turn on Root Explorer, Up to Root, and Mount File System.
Reboot into your Recovery and try to install the update again.
Repeat steps 3-6 for each subsequent file that produces an error. You will basically need to do this for each app you integrated using TB and maybe a few library files, too. **
* Future updates (above 4.1.2):
Since I won't be keeping the zip file from step #1 up-to-date, here's how to get the directories that I included in the zip for yourself:
Obtain a factory image for your device's current Android version (the version you're updating from).
For JB 4.1.1, this file is called nakasi-jro03d-factory-e102ba72.tgz.
If you're reading this guide at a later date, the JB 4.1.2 file is called nakasi-jzo54k-factory-973f190e.tgz.
You can try your luck at the official Google site, but they seem to only provide the version you're trying to update to, not from.
Extract the .tgz file somewhere on your PC.
Locate the image-naksi-jro03d.zip file and extract that, as well.
In the folder you just extracted from the previous step, located the system.img file.
Download and use a program called sgs2toext4 (View attachment 645320) to convert the system.img to system.ext4.img. ***
Download and use a program called Linux Reader to open system.ext4.img.
Do this by going to Drives > Mount Image > Next > select your file.
It will then be listed under the Hard Disk Drives section in red as "Linux Ext Volume 1".
Navigate to: Linux Ext Volume 1/system.
Right-click on the app (or lib) directory and pick Save > Next > Output to dir of your choice.
You now have the directories that were included with the zip file from Solution step #1, so just follow those steps now.
** How to avoid repeating steps:
If you'd rather not have to try to reinstall after updating only one file, just to find another file that needs updating, try this:
Obtain the /system/app and /system/lib folders from the factory image and save them to your PC.
For the sake of this guide, let's say you save them to C:\factory_app and C:\factory_lib.
Copy the /system/app and /system/lib directories from your phone to your PC.
For the sake of this guide, let's say you saved them to C:\phone_app and C:\phone_lib.
Download the File Checksum Integrity Verifier utility from Microsoft.
Start > Run > cmd
fciv.exe -sha1 -xml factory_app.xml -wp C:\factory_app
fciv.exe -sha1 -xml factory_app.xml -v -bp C:\phone_app
Don't ask me why, but you need to use -bp instead of -wp for the second command.
Don't forget the -v on the second command.
The output of the last command will show you the list of files that are different. These are the files you need to take from C:\factory_app and put into the /system/app directory on your phone.
Do the same for the lib directories (just replace all instances of "_app" with "_lib" in the previous commands).
Summary:
I hope that this post helped some of you who really didn't want to have to flash the system.img or wipe your device just to update. In the future, use TB to back up the original.
I wouldn't normally bother writing up a guide like this (it took almost as long to write as it did to figure out how to do this) but I couldn't find this solution anywhere even though I saw that I wasn't the only person with the problem. Sorry for not posting this guide sooner (update has been out for a while now), but the forum required me to make a bunch of useless spam posts before I could include any links in my guide and I didn't get around to making those posts right away.
*** I would like to thank balamu96m for his guide on extracting data from the system.img file and drphrozen for making the sgs2toext4 program.
Click to expand...
Click to collapse
my error 7 was generated by emmc: dev/block/mmdblk0p7 (the file is "param" any suggestions?

Thanks. After searching for a lot of time, this post helped me updating my SGS3.:victory: I previously tried to integrate youtube update into rom using titanium backup.

GallStones said:
Another thing: when in the OP you say it's way easier just to reflash the system.img you mean just run from bootloader "fastboot flash system system.img" (taken from the factory image as usual)
Click to expand...
Click to collapse
Yes, that's what I mean. The reason I didn't want to do this on my device is because I had modified some other system files that I wanted to keep the modifications for.

Wow, thanks a lot OP! Your guide helped me fixing an error during the update to 4.2.2 on my Nexus 4.

please include a video ,im getting lost in the details

solved.

Nexus 6p stuck on Google screen during boot due to replacing build.prop

I Replaced the build.prop on my rooted Google nexus 6p running Android 7.0 with the build.prop file from the pixel to run Google Assistant.The phone is now stuck on the Google logo during boot,PLEASE HELP.

Did you make a backup copy of the file before replacing it, are you rooted, and have TWRP installed?
If so, reboot to recovery, use TWRP Terminal function to copy the backup of the build.prop to the modified one.

dratsablive said:
Did you make a backup copy of the file before replacing it, are you rooted, and have TWRP installed?
If so, reboot to recovery, use TWRP Terminal function to copy the backup of the build.prop to the modified one.
Click to expand...
Click to collapse
I did not make a back up but I am rooted and have Twrp installed.What can i do from here?

If you can boot to bootloader you should be able to replace the file with a standard one.

Alden1227 said:
I Replaced the build.prop on my rooted Google nexus 6p running Android 7.0 with the build.prop file from the pixel to run Google Assistant.The phone is now stuck on the Google logo during boot,PLEASE HELP.
Click to expand...
Click to collapse
same here please help.....freaking out

1. The build.prop contains the settings for a specific build for a specific phone. You can't just replace it from another build, not to mention another phone. Well, I guess, you already know this.
2. You should know exactly which build you were on. Exactly. Then:
* What I would do, is download the factory image from https://developers.google.com/android/nexus/images#angler
o Extract it, extract the image-angler-...zip, and mount the system.img, find the build.prop and adb push it to the phone.
o Reboot
* But you can also ask somebody who has the exact build as you do, and ask for the build.prop. Then push it to the phone.

Either restore from backup or edit the buildprop (if possible) I guess.
You only needed to edit 2 lines in the buildprop though, why replace the whole thing?

Alden1227 said:
I did not make a back up but I am rooted and have Twrp installed.What can i do from here?
Click to expand...
Click to collapse
First thing's first. Since you didn't just edit your build.prop, but replaced it with another, try setting permissions.
Step 1: Boot to TWRP > Mount > Select "System"
Step 2: Advanced > File Manager
Step 3: Navigate to /system/build.prop
Step 4: Select "chmod" and type "644" (don't include quotation marks)
Reboot and see if it works. If the permissions weren't right and you didn't change them, you'd most likely be in a boot loop. If this doesn't work you can just flash your system.img again. It won't wipe your internal storage, data (installed apps, etc.) If you have custom host files for ad blocking, you may need to apply them again.
If that does not work;
I'm going to assume you were on stock Nougat. Download the factory image (same build you were on before) and unzip the file. You'll end up with a folder with another zip archive in it. Unzip that as well. Inside you'll find a file named "system.img"
Move that system.img file to your ADB/fastboot folder. Shift+Right Click that folder and select "Open command window here"
Hold volume down + power to boot into the bootloader. Connect the phone to the PC and in the command prompt, type "fastboot devices" (no quotes again. ) It should show your devices serial number. If it does, perfect. If not, check your ADB/fastboot installation.
Once you get fastboot to show your serial number all you need to do is type;
Code:
fastboot flash system system.img
That should do it. If you need any more help, just reply back.
Edit: @istperson, AFAIK, you cannot pick out files from a .img file like that. When I right click it on my system and choose mount it tells me the image file is corrupted. Tried downloading again and hashes match. Windows 10. I use 7zip as well, and that can't open it either. Is there another program to use or is something whacky on my end? Wouldn't doubt it. Just took a Win10 update yesterday and it's been acting up on me all day. :/

RoyJ said:
Edit: @istperson, AFAIK, you cannot pick out files from a .img file like that. When I right click it on my system and choose mount it tells me the image file is corrupted. Tried downloading again and hashes match. Windows 10. I use 7zip as well, and that can't open it either. Is there another program to use or is something whacky on my end? Wouldn't doubt it. Just took a Win10 update yesterday and it's been acting up on me all day. :/
Click to expand...
Click to collapse
It's a sparse image, you have to convert it to normal mage with simg2img. Then you can mount it normally.

istperson said:
It's a sparse image, you have to convert it to normal mage with simg2img. Then you can mount it normally.
Click to expand...
Click to collapse
Awesome, thanks!

Fixed the issue
frreak said:
same here please help.....freaking out
Click to expand...
Click to collapse
I got mine to work by flashing Android 7.0

same thing happened to me.... stuck on google even after flashing stock....

dadoc04 said:
same thing happened to me.... stuck on google even after flashing stock....
Click to expand...
Click to collapse
Flash stock boot, system and vendor img files.
Sent from my Pixel XL using XDA-Developers mobile app

Same thing happened to me at first (though I did not use the build prop from a Pixel). I just dirty flashed my ROM (Octo N) and it then got passed the Google screen and loaded with no problem. I updated my build prop manually in order to get Google Assistant to work, and it's been working great ever since.

RoyJ said:
First thing's first. Since you didn't just edit your build.prop, but replaced it with another, try setting permissions.
Step 1: Boot to TWRP > Mount > Select "System"
Step 2: Advanced > File Manager
Step 3: Navigate to /system/build.prop
Step 4: Select "chmod" and type "644" (don't include quotation marks)
Reboot and see if it works. If the permissions weren't right and you didn't change them, you'd most likely be in a boot loop. If this doesn't work you can just flash your system.img again. It won't wipe your internal storage, data (installed apps, etc.) If you have custom host files for ad blocking, you may need to apply them again.
If that does not work;
I'm going to assume you were on stock Nougat. Download the factory image (same build you were on before) and unzip the file. You'll end up with a folder with another zip archive in it. Unzip that as well. Inside you'll find a file named "system.img"
Move that system.img file to your ADB/fastboot folder. Shift+Right Click that folder and select "Open command window here"
Hold volume down + power to boot into the bootloader. Connect the phone to the PC and in the command prompt, type "fastboot devices" (no quotes again. ) It should show your devices serial number. If it does, perfect. If not, check your ADB/fastboot installation.
Once you get fastboot to show your serial number all you need to do is type;
That should do it. If you need any more help, just reply back.
Edit: @istperson, AFAIK, you cannot pick out files from a .img file like that. When I right click it on my system and choose mount it tells me the image file is corrupted. Tried downloading again and hashes match. Windows 10. I use 7zip as well, and that can't open it either. Is there another program to use or is something whacky on my end? Wouldn't doubt it. Just took a Win10 update yesterday and it's been acting up on me all day. :/
Click to expand...
Click to collapse
Chmod 755 worked too

*UPDATED**UNLOCK TOOL (4-2019) for ALL Versions of BLU R1-HD

BLU R1-HD bootloader unlock script tool, and TWRP install tool.
Download is a zip file, unpack it to somewhere you will remember. Run the dirty-cow-tool.bat // mtk-su-tool.bat
The included files and folders are set to hidden, in effort to keep them safe from accidental delete.
Must have adb+fastboot + drivers installed and setup prior to using tool
Easiest method to install adb + fastboot on windows is with "15 second adb + fastboot install TOOL"
LINK==>ADB+FASTBOOT
It is for windows
In linux :
"sudo apt-get install android-tools-adb"
"sudo apt-get install android-tools-fastboot" Some fastboot commands were missing when i used this one ie "fastboot flashing get_unlock_ability"
"sudo apt-get install fastboot" worked better when I tried. ( i used that command as a check before doing the unlock, so it was needed only for that check)
Using Tool
On Windows?
Unzip the downloaded file to a new folder, open new
folder and click on "dirty-cow-tool.bat". // "mtk-su-tool.bat"
Do the steps in order (1-2-3-4) to be unlocked, then
Step (5) to get to second page where step (1) is root
The rest is optional
On Linux?
Unzip downloaded file to new folder folder .
Open folder. Then open R1-Linux-tool-v2 folder
Open terminal from that folder and type
" . R1-HD-TOOL.sh "
Same order of steps (1,2,3,4) step (5) for extra
Steps (1 on second menu) for superSU root.
Second menu steps (2,3,4,5,6,7,8) are optional.
**Linux Note**
The tool uses "fastboot flashing get_unlock_ability" as one of the methods to check before doing the unlock.
The version of fastboot that installed with "apt-get install android-tools-fastboot" did not recognize
this command. But "apt-get install fastboot" updated some version and then the command was recognized.
******OTHER NOTES****
--- this has been mentioned in the general thread and the modified v17 thread, but It has come up again so I wanted to make note of it.----
--- The newest blu versions (V7.4.2 and V17) Have made changes to "toolbox" and this effects things like "adaway" and "titanium backup"
--- The suggested fix is to install busy-box. I have had success with the version from play store, some prefer to use f-droid version. Either one will do. Install it and open the app. From in the app you need to do an install.
CHANGE LOG
V1:. Initial release : removed
V2:. : fixed typos preventing proper function
V3:.: switch file verification to md5 check instead of "ls-l" comparison.
V4: current version: add extras page, add SU flash, de-bloat script, Added Fm Radio, Added pre-loader roll back
V5: Fixed wrong loop "goto" line that made preloader rollback do "MTK_BLU Debloat v2" instead
V6: Added manual pause to script for mods that need recovery (Extra's 5) . Added redundent recovery flash command .
Few reports of recovery "not Sticking" and needed to run the flash commands manually one by one. Maybe the redundent
flash will make it survive. If still having problem with recovery "staying install" try manually flashing
here is link to the steps needed. FLASH RECOVERY
V7 Improved logs Added line to make batch run as sub-process so if error occurs , will not close
V7.1 : Updated the fm radio install zip and include the needed selinux mode changer app
V8: fixed dependency of needing to be unzipped to location w/o spaces in name. (when used from location with spaces, tool used to fail to push needed files).
.. added more time to allow dirtycow to "spawn" its root shell. Recent testing has shown sometimes it takes longer than the 60 seconds allowed in the script. Now it is looped 3 times.
V9 Added full path to abd push lines for recovery flash files. included fastboot.exe file to address some version issue where user s version would not output text file I coded into script for a verification ( included file is called by script, no need to do anything different with it)
V10: Moved zip file to included folder to help preserve locations when unpacked, added device check before running tool; So tool not used on wrong device, Rearranged order of operations on extra's page. (recovery installed options) Push files while in android before rebooting to recovery( should improve reliability for multiple reports of not automatically installing options for some)
******I have received some reports that some devices are reporting "ro.build.product =R1_HD and not "BLU_R1_HD" like mine, so the added device check is blocking tool from starting If this happens to you , you can make edit to the .bat file like below.
Change this line
Code:
:next_check
find "BLU_R1_HD" "%~dp0workingproduct.txt"
To this
Code:
:next_check
find "R1_HD" "%~dp0workingproduct.txt"
it is line #23
V11: Updated device model verification lines
MTK-SU: Replaced all dirty-cow part with New MTK-SU binary(elf) from @diplomatic
source
Click to expand...
Click to collapse
Credits to @Diplomatic for his work on the Mtk_su that I used used to make this tool work again after Dirty-Cow was patched.
DOWNLOAD LINK
Preferred to use the Downloads tab of this thread.
Archived downloads on android file host also == link
XDA:DevDB Information
R1-HD Dirty-cow Unlock Tool, Tool/Utility for the BLU R1 HD
Contributors
mrmazak, vampirefo for his recovery, lopestom for his recovery, emc2cube for his debloat zips, christianrodher for his dirtycow method,
Source Code: https://github.com/mrmazakblu/DirtyCow-R1_HD
Version Information
Status: Testing
Current Stable Version: V11
Stable Release Date: 2017-04-11
Current Beta Version: MTK-SU
Beta Release Date: 2019-04-14
Created 2017-02-22
Last Updated 2019-04-18

Reserved
Items planed to be addressed in next release:
--Add few more file integrity checks to the extra's page
--Add copy log to clipboard option so it is easier to post log entry if needed-------*********----already-_added to github copy of batch file
--Add a verification step that checks what recovery is installed( to prevent trying to do steps on extra's page with stock recovery)
--Possibly move to a "fastboot boot recovery" instead of "adb reboot recovery" for the same reason as above
--Add wget or similar to the extra's items so initial "TOOL" size is smaller (not that 40-50MB is big, but to some it may be )
--Add additional "selinux mode changer apk" for fm radio install rather than just the note that says it needs to be found.

Reserved

Works great on OEM 6.6, thanks for the tool!

So I got the one-click-root.sh done, maybe. Can some linux users go over it, make sure I didn't do anything stupid? I don't exactly have a device to check it with atm, and I am not pro with scripting, barely novice, so it is a pretty basic conversion of the batch file. Still, it might work . Just would like a few eyes on first.
https://github.com/theredbaron1834/Scripts/blob/master/one-click-root.sh
Also, I looked at dirty-cow-tool.bat. However, wow, more an advanced batch file, and I am not sure what the first half does, so not sure how to convert . However, it seems if anyone does get it, the eqiv of goto for linux is funtions. simple cheatsheet:
Code:
function stuff {
echo "this stuff is run via the function"
{
stuff #goes to stuff and runs function

theredbaron1834 said:
So I got the one-click-root.sh done, maybe. Can some linux users go over it, make sure I didn't do anything stupid? I don't exactly have a device to check it with atm, and I am not pro with scripting, barely novice, so it is a pretty basic conversion of the batch file. Still, it might work . Just would like a few eyes on first.
https://github.com/theredbaron1834/Scripts/blob/master/one-click-root.sh
Also, I looked at dirty-cow-tool.bat. However, wow, more an advanced batch file, and I am not sure what the first half does, so not sure how to convert . However, it seems if anyone does get it, the eqiv of goto for linux is funtions. simple cheatsheet:
Code:
function stuff {
echo "this stuff is run via the function"
{
stuff #goes to stuff and runs function
Click to expand...
Click to collapse
thank you for your input.
As far as the begining of the batch, It is adding a few folders to the "path" variable so help ensure the "adb push" commands find the files it is trying to push. Then it sets some folder "flags" to hidden so that the files the batch needs don't get accidentally moved or changed. Then the large section with mostly "echo" that is to set up the "simulated" G.U.I.
The lines of just "::::::::::" are simply used to help with reading the batch file. i use them to seperate functions. They are not needed.
The lines with only 2 "::" are standard windows comment / remark line entries
The lines with 1 ":" are the beginning line of the loop/ function == the line that "goto *" searches for

Does Works to unlock 7.4.2?

khyr said:
Does Works to unlock 7.4.2?
Click to expand...
Click to collapse
It is supposed to. It is the same base codes used from original script, and that one was confirmed to work. I Do not have first hand use of V7.4.2 so it is only confirmed through other users.
The dirty-cow being used has been patched by google in Dec but blu has not rolled out the patch. So there is no reason for it not to work.

edit:
I have the linux version ready.
-the first step, (ADB Push) is ready. including md5 file checks
-step 2 is ready= running dirty-cow with md5 check before final writing to mmcblk device
-step 3 is ready unlocking bootloader = including check if unlock is done, but need to fix the "unlock_adility" check
I can make to file to compare and grep the line needed, but cannot "sed" the extra information or do a > < comparison
-step 4 is ready .--flash twrp
Finished 90% of tool.
still need to tweek the log feature.
I ran tests on the lop back to menu and test ran
1. push files for dirty-cow and md5 check . then made push fail to verify the check method was valid ==pass
2. run dirty cow commands and md5 verification on resulting file. ==pass
3.unlock bootloader --- I ran it (needed to fake the already unlocked check) it works == pass
4 . flash twrp --installed both version i have, both install fine ===pass
5 extra menus -- ran . install su-----debloat---rebloat--- add fm radio--- preloader roll back =====all pass
(bootloader roll back needs manual intervention to re-enter fastboot during the boot loop that is unavoidable)
6. instruction ====not written yet
7. exit yes it closes == pass
8. logs --- needs completeing

I just loaded this on my OTA updated 7.4.2 device. I would note that the batch file does not actually create the /sdcard/Download folder so you might need to go into the terminal and actually create this on your sdcard... also worth noting that this batch file **requires** an sd card in the device to do any of the loads in the "5" menu.

torchredfrc said:
I just loaded this on my OTA updated 7.4.2 device. I would note that the batch file does not actually create the /sdcard/Download folder so you might need to go into the terminal and actually create this on your sdcard... also worth noting that this batch file **requires** an sd card in the device to do any of the loads in the "5" menu.
Click to expand...
Click to collapse
no it does not.
the /sdcard is the internal memory and the Download folder is already there.
you might be having issues but the folder is already part of normal system

mrmazak said:
no it does not.
the /sdcard is the internal memory and the Download folder is already there.
you might be having issues but the folder is already part of normal system
Click to expand...
Click to collapse
Fair enough, my restore didn't have /sdcard/Download and I made an assumption that /sdcard was my mounted card. Thanks for the insight.

OOPS
found typo on V4 of tool. batch files sets variables for "return", from loop functions. And two returns were set to same label9, so if you had tried to do extra's menu option #8. "ROLL Back Preloader" , instead it was running option # 5. " MTK_BLU Debloat v2"
fixed and still reading and re-reading to search for errors.
This looks bad.
The reason I put together this tool was I felt it was important to make a way to minimize the problems usually associated with android modifications. By making "typo's" a thing of the past, and I found them in my own script.
re-posted V5 combined with linux V2--

torchredfrc said:
I just loaded this on my OTA updated 7.4.2 device. I would note that the batch file does not actually create the /sdcard/Download folder so you might need to go into the terminal and actually create this on your sdcard... also worth noting that this batch file **requires** an sd card in the device to do any of the loads in the "5" menu.
Click to expand...
Click to collapse
I'm a total noob, and I'd like to know how to proceed with the supersu and all the other parts of step 5. Thank you

gabriel986 said:
I'm a total noob, and I'd like to know how to proceed with the supersu and all the other parts of step 5. Thank you
Click to expand...
Click to collapse
Ok. After you have completed upto twrp install. You can do the options on #5. It is all programed and automatic. What is does is put zip files onto the phone and reboots phone into recovery, then recovery installs them.

mrmazak said:
Ok. After you have completed upto twrp install. You can do the options on #5. It is all programed and automatic. What is does is put zip files onto the phone and reboots phone into recovery, then recovery installs them.
Click to expand...
Click to collapse
I get up to the recovery installation, but then I can not access such recovery on the phone, If I turn it on with power+vol up, it takes me to the default factory recovery by blu.
And If I try to the super su step with the phone on, it resets it, and get it to the screen with the dead android, while the script just shows the ADB DETECTED message.
In case it's needed, my R1 HD is running on
BLU_R0010UU_V7.4.2_GENERIC 09-11-2016 13:38

gabriel986 said:
I get up to the recovery installation, but then I can not access such recovery on the phone, If I turn it on with power+vol up, it takes me to the default factory recovery by blu.
And If I try to the super su step with the phone on, it resets it, and get it to the screen with the dead android, while the script just shows the ADB DETECTED message.
Click to expand...
Click to collapse
You missed a step in the process.
As tool finishes the recovery install it comes to a "pause" in the script, you need to hold the volume up button on phone "before" pressing button on pc keyboard to continue.
If phone does a normal reboot at this point then the system will replace the newly installed recovery with the stock one.
Giving you the situation you have now.
This step I cannot control, you must press volume button on phone to get the boot menu, and directly boot into recovery to ensure that the install sticks.

mrmazak said:
You missed a step in the process.
As tool finishes the recovery install it comes to a "pause" in the script, you need to hold the volume up button on phone "before" pressing button on pc keyboard to continue.
If phone does a normal reboot at this point then the system will replace the newly installed recovery with the stock one.
Giving you the situation you have now.
This step I cannot control, you must press volume button on phone to get the boot menu, and directly boot into recovery to ensure that the install sticks.
Click to expand...
Click to collapse
trying again....
for how long should I press the volume up key?

gabriel986 said:
trying again....
for how long should I press the volume up key?
Click to expand...
Click to collapse
When tool says Hold button , keep it held. Then continue the script. Phone should reboot to the boot menu. Then let go of volume
Some phones do not accept the fastboot reboot command, on those phones need to hold power to shut off. Then volume and power together to come on, release power when screen come on

mrmazak said:
When tool says Hold button , keep it held. Then continue the script. Phone should reboot to the boot menu. Then let go of volume
Some phones do not accept the fastboot reboot command, on those phones need to hold power to shut off. Then volume and power together to come on, release power when screen come on
Click to expand...
Click to collapse
ok.. trying again
---------- Post added at 02:00 PM ---------- Previous post was at 01:46 PM ----------
gabriel986 said:
trying again....
for how long should I press the volume up key?
Click to expand...
Click to collapse
it beat me!
I get stuck in that part of the process, If anyone uploads a video to check what i'm doing wrong, I'll be grateful.