[Q] Forgot Pattern Lock - Samsung Galaxy Nexus

Hi there,
I owned a Galaxy Nexus running Jelly Bean 4.2.1 version, yakjuxw (Not rooted), GSM. I activated the Pattern Lock to prevent the kids at my relatives house messing my phone. Unfortunately, I forgot the pattern and the phone stays locked out. I have tried the pattern combinations for days but failed.
I have tried to key in my Gmail account username/password but since my phone is wifi/data switched off, I cant sign in. Moreover, I am not sure whether the USB Debugging is enabled.
I have tried some 'hole' methods recommended at some forums, but it didnt work on my phone.I hope to get access to my messages/images/some files and transfer them to my pc before reset the phone to factory setting. Please help! :-|

yu_buffon said:
Hi there,
I owned a Galaxy Nexus running Jelly Bean 4.2.1 version, yakjuxw (Not rooted), GSM. I activated the Pattern Lock to prevent the kids at my relatives house messing my phone. Unfortunately, I forgot the pattern and the phone stays locked out. I have tried the pattern combinations for days but failed.
I have tried to key in my Gmail account username/password but since my phone is wifi/data switched off, I cant sign in. Moreover, I am not sure whether the USB Debugging is enabled.
I have tried some 'hole' methods recommended at some forums, but it didnt work on my phone.I hope to get access to my messages/images/some files and transfer them to my pc before reset the phone to factory setting. Please help! :-|
Click to expand...
Click to collapse
You can reset the phone to Factory settings.
1. Turn off your phone.
2. Press vol up+vol down+power buttons till it vibrates. Now you see a dead android.
3. Navigate with your volume buttons to "Recovery Mode" and select it with the power button.
4. When its booted you should see a soort of menu.
5. Select "wipe data" (or something like that). THIS WIPES YOUR DATA AND YOUR INTERNAL STORAGE (music, pictures etc..)
6. Select reboot system now.
7. Done.
Sent from my Galaxy Nexus using XDA Premium HD app

Without wiping out the data
mrgnex said:
You can reset the phone to Factory settings.
1. Turn off your phone.
2. Press vol up+vol down+power buttons till it vibrates. Now you see a dead android.
3. Navigate with your volume buttons to "Recovery Mode" and select it with the power button.
4. When its booted you should see a soort of menu.
5. Select "wipe data" (or something like that). THIS WIPES YOUR DATA AND YOUR INTERNAL STORAGE (music, pictures etc..)
6. Select reboot system now.
7. Done.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
Thank you for the reply. But, I wish to get access to my files in order to transfer them to a save location before reset the phone to Factory settings. Is there a way to hack into the device without wiping out the data?

Try this out.
http://en.miui.com/thread-5684-1-1.html

ATTACK said:
Try this out.
http://en.miui.com/thread-5684-1-1.html
Click to expand...
Click to collapse
Call yourself from another phone and answer, after that your phone will probably get unlocked.

In ADB or some other way to access the file system in Recovery Mode
navigate to /data/system and
delete password.key and/or gesture.key
- reboot.
Password/Gesture Lock gone.
You can use AROMA File Manager in Recovery (would have to sideload it if you didn't pre-install it)
http://forum.xda-developers.com/showthread.php?t=1646108
Good luck. Post back with your solution.

Trying...
ATTACK said:
Try this out.
Click to expand...
Click to collapse
Thank you for the link. I am downloading the Cygwin on my Windows Vista machine. Slow broadband speed has actually delayed my work.

Sideload
jpinsl said:
In ADB or some other way to access the file system in Recovery Mode
navigate to /data/system and
delete password.key and/or gesture.key
- reboot.
Password/Gesture Lock gone.
You can use AROMA File Manager in Recovery (would have to sideload it if you didn't pre-install it)
http://forum.xda-developers.com/showthread.php?t=1646108
Good luck. Post back with your solution.
Click to expand...
Click to collapse
Thank you for the help. What do you mean by sideload? I am using a Galaxy Nexus which has no SD slot.

yu_buffon said:
Thank you for the help. What do you mean by sideload? I am using a Galaxy Nexus which has no SD slot.
Click to expand...
Click to collapse
Please use the search function:
http://forum.xda-developers.com/sitesearch.php?q=sideload

adb method failed
ATTACK said:
Try this out.
/QUOTE]
Hi, I have used the Mint Live session instead. When I type <adb shell>, it returns <error no device found>. What should I do? Please help.
Click to expand...
Click to collapse

I am a noob
jpinsl said:
Please use the search function:
Click to expand...
Click to collapse
Hi, I have searched about sideload. I have never rooted my phone before and having difficulties in understanding the android features. Can you provide me a walk-through on how can I install the recovery on my locked out phone and access my files please.
FYI, I tried the adb method listed above, but the terminal returns <error no device found>. I tried the method on Mint (linux) live session.

I managed to get access to my data. Messages are the only thing I am losing out. Thank you XDA guys.

Related

[N2E] Flash back to clean stock ROM

*Note: By using this method you don't have to worry about re-imaging with someone else's nook rom and overwriting your mac address and serial # with someone else's.
There are two parts to the re-flash, you must do both in this order
1. Re-imaging the PROGRAM portion of the nook.
2. Re-imaging the data portion of the nook.
Part one: Re-image the Nook Touch /system partition
Your nook must already be properly rooted for this to work. Install adb on your PC if you don't have it already. Prep your nook by installing "adb wireless" from the app store and run the app. (if you don't know how to use adb, google it)
Run the "adb wireless" app on your nook and press the "big button" and take note of your nooks ip address.
We now can connect the nook through the adb shell and manually change the BootCnt file so that the boot count is 8. This avoids the pain of manually interrupting the boot process 8 times.
connect to your nook by typing "adb connect (nook ip)" from your pc
Once you have connected to your nook, use the following commands:
adb shell
echo -n -e "\x08\x00\x00\x00" > /rom/devconf/BootCnt
reboot
Thats it for part one. Your nook will reboot and start the re-imaging process. Let it finish and reboot again.
Part two: Re-imaging the data portion of the nook
1. Go to Settings
2. Select "Device Info" under the top "Device Settings" section
3. Select "Erase & Deregister Device"
4. Select the "Erase & Deregister Device" button
5. Select the "Reset Nook" button
A Deregistration message will appear and the nook will reboot.
Upon reset a Clearing data message will appear
This may take a few minutes. The nook will reboot again once complete.
Thats it! Smell that Fresh clean stock nook!
I must give credit to nookdevs dot com. They posted this process for unrooting the nook color. The process is exactly the same for the nook touch. I am a noob on this board so I can't post links yet. I have verified this process works. I had to unroot my nook to get the Shop to work again. Hope this helps. Good luck!
Is it normal for the nook to at the very end of the process bar ? What do I do ? Did I screw it ? I am afraid to try powering it off ?
Please edit your question. I don't understand what you are asking.
Thanks
vacano said:
Is it normal for the nook to at the very end of the process bar ? What do I do ? Did I screw it ? I am afraid to try powering it off ?
Click to expand...
Click to collapse
Are you asking if it is safe to turn off the nook while the progress bar is still visible? Did the progress bar freeze? Please provide more information, I don't understand your question.
Yes. It froze at the very end
Here I have attached a picture as well.
http://forum.xda-developers.com/showthread.php?p=15880635#post15880635
vacano said:
Yes. It froze at the very end
Here I have attached a picture as well.
http://forum.xda-developers.com/showthread.php?p=15880635#post15880635
Click to expand...
Click to collapse
I would just power it down. There is nothing else you can do in that state. How long did you wait?
I'm having trouble getting the Market app to find the adb wireless app...any idea if there's a direct way to install it? Thanks!
coolkatz321 said:
I'm having trouble getting the Market app to find the adb wireless app...any idea if there's a direct way to install it? Thanks!
Click to expand...
Click to collapse
If you rooted with TouchNooter than you shoud have the ADB packages installed. Using the ADB wireless makes things easier, however you can run ADB over usb. Just google "ADB over USB nook" and you will see the link for the nookdevs forum. It gives the instructions for windows, mac, and linux.
I would post the links, but I can't as of yet because I am a noob. One more post should get me to 8.
coolkatz321 said:
I'm having trouble getting the Market app to find the adb wireless app...any idea if there's a direct way to install it? Thanks!
Click to expand...
Click to collapse
Oh yeah... I almost forgot...try this first... There is a known problem where you can't search in the android market. Just go to amazon and get the amazon android market instead. That is what I did.. and if all else falls...you can use the ADB over usb.
J.Harmon said:
Oh yeah... I almost forgot...try this first... There is a known problem where you can't search in the android market. Just go to amazon and get the amazon android market instead. That is what I did.. and if all else falls...you can use the ADB over usb.
Click to expand...
Click to collapse
How did you get the Amazon market?! My Nook simply does not want to play nice.
coolkatz321 said:
How did you get the Amazon market?! My Nook simply does not want to play nice.
Click to expand...
Click to collapse
open up your browser on your nook and go to:
http://www.appbrain.com/app/siir.es.adbWireless
appbrain.com will probably have you set up an account before you can download it.
google is your friend.
My Unroot Method
Maybe this will work for you all too. It worked really well for me (but this is assuming you don't have the 1.0.1 update):
1 - Turn nook off and turn on pushing power button than 2 bottom buttons.
2 - Press home twice to clear data
3 - Login as normal and then go to Settings and Erase and DeRegister your Nook
4 - When nook comes back up login and register nook as normal
5 - Download http://su.barnesandnoble.com/nook/n...Dpomf5qvKtTeXxjxcgaa2cS/nook_1_0_1_update.zip and put it on the root of your nook (not SD card)
6 - Let nook apply the update
7 - That should be it.
I deregistered it after that. Rebooted. Reset. Rebooted. Every time came up stock for me to register.
Kohr-Ah said:
Maybe this will work for you all too. It worked really well for me (but this is assuming you don't have the 1.0.1 update):
1 - Turn nook off and turn on pushing power button than 2 bottom buttons.
2 - Press home twice to clear data
3 - Login as normal and then go to Settings and Erase and DeRegister your Nook
4 - When nook comes back up login and register nook as normal
5 - Download http://su.barnesandnoble.com/nook/n...Dpomf5qvKtTeXxjxcgaa2cS/nook_1_0_1_update.zip and put it on the root of your nook (not SD card)
6 - Let nook apply the update
7 - That should be it.
I deregistered it after that. Rebooted. Reset. Rebooted. Every time came up stock for me to register.
Click to expand...
Click to collapse
Thanks! This method has worked best for me.
Now that you upgraded to the 1.01 update, will this method still work?
Have you tried it?
I have not yet as I haven't tried rerooting it again.
Sent from my HTC Sensation 4G using XDA App

Phone locked with pattern lock

Hey Friends !
My friend messed up with pattern lock of HTC DESIRE and tried many wrong pattern and now phone locked and asking gmail password to unlock, unfortunately he forgot his gmail password since no longer using gmail.
Please help any solution for this to unlock phone ?
Thanks in advance !
Sorry, if already there is related thread.
Probably the only way he can do this without losing his data is to go to gmail and use the can't access your account link to retrieve his password. Otherwise you'll have to factory reset the phone. There may be other ways which i am unsure though.
On the unlock screen, attempt to enter your unlock pattern five times. When prompted to wait for 30 seconds, tap OK. If the display goes off, press the POWER button to turn the display back on, and then press the bar on the lock screen and slide your finger down to unlock the screen. Tap the Forgot Pattern button in the lower right corner when it appears. Enter your Google Account name and password, and then tap Sign in. You are then prompted to create a new screen unlock pattern. If you no longer want to use a screen unlock pattern to secure your phone, tap Cancel.
I know u dont remember the account but maybe theres some other option there.
Sent from my HTC Desire using xda premium
go to recovery > wipe data (factory reset)
If you can't get your gmail password back (through the reset function), Your only option might be unfortunately to reset the phone...
Thanks guys for advises
Unfortunately, can not retrieve gmail password too... guys I don't want to loose may data, any alternative solution for this?
If not I have to do factory reset at last
omegfa said:
go to recovery > wipe data (factory reset)
Click to expand...
Click to collapse
How to enter recovery ?
What is Key combination for factory rest ?
ShresthasR said:
Thanks guys for advises
Unfortunately, can not retrieve gmail password too... guys I don't want to loose may data, any alternative solution for this?
If not I have to do factory reset at last
Click to expand...
Click to collapse
Try nandroid backup your phone and see if you can extract the data out. For recovery, turn the phone off, press Vol down while pressing the power button and press volume button to point recovery and confirm with power button.
Sent from my HTC Original Desire with Android 4.0.4 ICS using Tapatalk
You can also delete the gesture.key to remove the pattern lock via adb.
If USB debugging is enabled :
Code:
adb shell rm /data/system/gesture.key
If not, go on recovery, mount all and delete gesture.key with adb !
Or crack it http://forensics.spreitzenbarth.de/2012/02/28/cracking-the-pattern-lock-on-android/ a bit difficult.
dqb said:
You can also delete the gesture.key to remove the pattern lock via adb.
If USB debugging is enabled :
Code:
adb shell rm /data/system/gesture.key
If not, go on recovery, mount all and delete gesture.key with adb !
Or crack it http://forensics.spreitzenbarth.de/2012/02/28/cracking-the-pattern-lock-on-android/ a bit difficult.
Click to expand...
Click to collapse
Good bit of info to know
Sent from my HTC Desire using xda premium
Thanks guys for your helps and suggestions
But guys I unlocked by very simple tricks
Just exposed the screen in light & see the trace mark of previously drawn lock series.
I got the finger marks ... here we done, unlocked cell

[Q] Problem with Galaxy Tab 7'' update

Hello.
I recently got myself a Samsung Galaxy Tab 3 7in and everything seemed to be working just fine until the system eventually prompted me to update the Samsung software. I followed the steps, the tablet downloaded the update files itself and rebooted in order to install the updates. Problem is, during the reboot/installation process the screen remained black with just 2 lines of pixels on across the screen, I though this was part of the booting process but it just stood there for more than 10 minutes so I decided to turn it back on. Everything seemed to be fine, but then an error message came up saying there could be problems with the software (i didn't pay too much attention), but after this it won't let me install any apps. After an app is done downloading a message pops up saying "unknown error code during application install -110", plus my computer (or any other computer) doesn't detect when it's plugged in via USB cable. I've tried doing several factory resets and wipes and still have the same issues. Tried installing Kies but it won't detect it either.
How can I repair the firmware without having to connect the tablet to my computer? Is there anything I can download directly to it or transfer via Bluetooth to re-install the software?
Any help will be very much appreciated
Try resetting it back to factory defaults. You can google it easily.
hypnonaut said:
Hello.
I recently got myself a Samsung Galaxy Tab 3 7in and everything seemed to be working just fine until the system eventually prompted me to update the Samsung software. I followed the steps, the tablet downloaded the update files itself and rebooted in order to install the updates. Problem is, during the reboot/installation process the screen remained black with just 2 lines of pixels on across the screen, I though this was part of the booting process but it just stood there for more than 10 minutes so I decided to turn it back on. Everything seemed to be fine, but then an error message came up saying there could be problems with the software (i didn't pay too much attention), but after this it won't let me install any apps. After an app is done downloading a message pops up saying "unknown error code during application install -110", plus my computer (or any other computer) doesn't detect when it's plugged in via USB cable. I've tried doing several factory resets and wipes and still have the same issues. Tried installing Kies but it won't detect it either.
How can I repair the firmware without having to connect the tablet to my computer? Is there anything I can download directly to it or transfer via Bluetooth to re-install the software?
Any help will be very much appreciated
Click to expand...
Click to collapse
my friend has the same problem. did you fix the issue? if so how?
I am using the Apex Launcher but I think this is possible with stock launcher as well hopefully it helps someone. This is one way to do a factory reset is:
You will need your MSL TO DO THIS. If you don't know it put the "Factory Mode" shortcut on your home screen then skip down to the 2nd part of this post & install the msl app.
FACTORY RESET:
1) long click on the home screen
2) click on shortcut
3) select Activities
4)Scroll down to "Factory Mode" tap it then select the dropled down one. This will put a Shortcut on the Home Screen.
5) Find the Factory Mode shortcut you just made & tap it to open it.
6) Dial ##786# then on the screen that pops up
7) select "RESET"
8)enter your msl in the box that popped up then select ok then the device will reboot & when it powers backup it will be like it was from the factory & if you don't know your MSL follow the instructions below.
TO GET MSL:
1) In a browser type bit.ly/mslutility - can sideload if needed
2)install app
3) Open app & click get MSL it will most likely fail this is fine.
4) click on the factory mode shortcut you made to open it
5) dial ##3282# & put in 6 zeros-it will tell you that it's incorrect this is fine. Go back to home screen
6) Open the MSL App & click on Get MSL-this time it should give you your devices 6 digit MSL Code. Write it down. Then do step # 6 above to reset your Device.
This shortcut will allow you to put the Sprint SGT3 into DIAG MODE(##3424#) , get into the ##data#(##3282#) menu, do the factory reset ##RTN# (##786#) & most likely any other Dialer/hidden menu's for this device.
Thanks to the MSL App builder(not sure who it is so let me know please)
Sent from my SGT3 SM-T217S using Tapatalk 4 I Flashed 2 Selectel
What is it trying to update to? 4.2.2?
Levi Woodard
Woodardwoodworks.com
Sent from the XDA premium app.

Recovery mode - debricked - yay

Great NEWS
I've been bricked for few day now.
While searching the web I found this OUYA forum post and thought it might work on th FTV too.
http://forums.ouya.tv/discussion/1380/recovery-mode
I just had to try. IT WORKED!
1 - Plug in a USB keyboard. May have to be wired.
2 - While booting - Press Alt+PrintScreen/SysRq+I
3 - Repeat 1-3 times. You should get to Update screen.
4 - Press the HOME button on the keyboard.
5 - YOU HAVE RECOVERY MODE!
I selected Factory Reset.
It took a little longer to boot. Prompted for missing remote & press Home.
Signing in NOW!
Will add pictures doon.
https://www.dropbox.com/s/vod5lhc5jvcegtv/20140629_195903.jpg
https://www.dropbox.com/s/3qh6sbibugf5pbd/20140629_185422.jpg
https://www.dropbox.com/s/u7faby39fkqd9gt/20140629_185430.jpg
Update:
I rebooted to see if I could get into recovery again.
I got back on the update screen but the Home button wouldn't put me in recovery mode this time. The KB seemed dead.
I was using the keyboard connected through a hub this time. Would that matter? IDK
Could not reboot with Ctrl-Alt-Del
Pulled the power plug & replugged and it booted fine.
Hey, dude, thats amazing!
Did you tried another options?
It's possible with mac keyboard, may be alternative combination exists.
There's not printscreen button on keyboard.
Great Find! :good:
EDIT: I just got to recovery by doing this:
1- boot up normally
2- adb shell
3- su
4- reboot recovery
5- at update failed screen press home
6- PROFIT??
iRet said:
Hey, dude, thats amazing!
Did you tried another options?
It's possible with mac keyboard, may be alternative combination exists.
There's not printscreen button on keyboard.
Click to expand...
Click to collapse
Thanks -
No, on the other options.
I thought for sure the factory reset would let me boot my FTV again - and it did.
I don't k know about mac KBds
{ParanoiA} said:
Great Find! :good:
EDIT: I just got to recovery by doing this:
1- boot up normally
2- adb shell
3- su
4- reboot recovery
5- at update failed screen press key combo- alt + print screen + i
6- back at update failed screen press home
7- PROFIT??
Click to expand...
Click to collapse
I'm sure your way is the preferred way.
It feels good to be able to boot up normally again.
Glad you got back to working condition
{ParanoiA} said:
Great Find! :good:
EDIT: I just got to recovery by doing this:
1- boot up normally
2- adb shell
3- su
4- reboot recovery
5- at update failed screen press key combo- alt + print screen + i
6- back at update failed screen press home
7- PROFIT??
Click to expand...
Click to collapse
This is nothing new (using adb to reboot into recovery). But it's not useful when you brick the OS and there is no ADB.
The OP found the way into the recovery w/o an OS, which is pretty key to unbrick your firetv, as long as you have a working recovery partition. Now we can also do complete flashes via update from adb (which probably allows sideloading the OTA packages).
{ParanoiA} said:
Glad you got back to working condition
Click to expand...
Click to collapse
Thanks
wow great find dude I just unbricked my first FTV using this method with a logitech k400. These things are damn near brick proof now!
alwaysbless said:
wow great find dude I just unbricked my first FTV using this method with a logitech k400
Click to expand...
Click to collapse
Awesome news!
Glad it helped.
alwaysbless said:
wow great find dude I just unbricked my first FTV using this method with a logitech k400. These things are damn near brick proof now!
Click to expand...
Click to collapse
Which key on the k400 is sysrq?
Sent from my Nexus 5 using Tapatalk
awsome!!!
awsome!!!
thank u very much!!!!
Luxferro said:
Which key on the k400 is sysrq?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
FN+Insert
Can someone give precise instructions to navigate the "update screen menu" blind? On my TV, the menu is completely cropped out. I don't even know if it's appearing when I press Home.
Does the menu come up instantly when you press Home on the Update Failed Screen?
Is it okay to press Home several times, or does that make the menu go away/toggle?
When you press Home, is the first menu item already selected or do you need to press down once to highlight the first menu item?
To get to the factory reset options do you press: Home > Down > Down > Enter?
Also, has anyone tried the "update from ADB" option? Does this enable ADB? Is it ADB over wifi or usb only? I ask mainly because factory reseting doesn't help those with a "host file softbrick" (where a modified host file is blocking initial registration). Those people need a way to get to the host file, which factory reseting doesn't touch.
fireTVnews.com said:
Can someone give precise instructions to navigate the "update screen menu" blind? On my TV, the menu is completely cropped out. I don't even know if it's appearing when I press Home.
Does the menu come up instantly when you press Home on the Update Failed Screen?
Is it okay to press Home several times, or does that make the menu go away/toggle?
When you press Home, is the first menu item already selected or do you need to press down once to highlight the first menu item?
To get to the factory reset options do you press: Home > Down > Down > Enter?
Also, has anyone tried the "update from ADB" option? Does this enable ADB? Is it ADB over wifi or usb only? I ask mainly because factory reseting doesn't help those with a "host file softbrick" (where a modified host file is blocking initial registration). Those people need a way to get to the host file, which factory reseting doesn't touch.
Click to expand...
Click to collapse
Hope this helps. Better pic. FTV recovery menu looks just like the ouya.
http://ouyaforum.com/showthread.php?4247-How-To-Put-OUYA-In-Recovery-Mode
[email protected] said:
Hope this helps. Better pic. FTV recovery menu looks just like the ouya.
http://ouyaforum.com/showthread.php?4247-How-To-Put-OUYA-In-Recovery-Mode
Click to expand...
Click to collapse
On the Fire TV, do you navigate the recovery menu with the keyboard up/down arrows?
fireTVnews.com said:
Also, has anyone tried the "update from ADB" option? Does this enable ADB? Is it ADB over wifi or usb only? I ask mainly because factory reseting doesn't help those with a "host file softbrick" (where a modified host file is blocking initial registration). Those people need a way to get to the host file, which factory reseting doesn't touch.
Click to expand...
Click to collapse
Stock recovery does not work with ADB over USB. And it doesn't have ethernet or wifi drivers. So "update from ADB", which is sideload, will not work on stock recovery.
fireTVnews.com said:
On the Fire TV, do you navigate the recovery menu with the keyboard up/down arrows?
Click to expand...
Click to collapse
You can use the keyboard arrows, but the keyboard must be plugged in before recovery starts.
fireTVnews.com said:
Also, has anyone tried the "update from ADB" option? Does this enable ADB? Is it ADB over wifi or usb only? I ask mainly because factory reseting doesn't help those with a "host file softbrick" (where a modified host file is blocking initial registration). Those people need a way to get to the host file, which factory reseting doesn't touch.
Click to expand...
Click to collapse
I thought alwaysbless was host softbricked, actually.
Maybe the factory reset in recovery is more thorough than the one coming from the gui?
roustabout said:
I thought alwaysbless was host softbricked, actually.
Maybe the factory reset in recovery is more thorough than the one coming from the gui?
Click to expand...
Click to collapse
Hi actually its not , im soft bricked by host file and this jewel find method didn't:crying help :crying:

Backup non-rooted LG G4 stuck in "UI stopped working" loop

Hello everyone,
Yesterday, after I tried to charge my LG G4, it stopped booting properly: it seems to boot "normally" under the hood, except that the system UI is not properly loading so instead I get a black screen and a message "Unfortunately system UI stopped working". If I click "ok", it comes back within two seconds (the screen stays black apart from the error message). I cannot do anything, like unlock the phone or access anything on it, despite the fact that I can hear notifications coming in.
Unfortunately phone is not rooted, developper mode isn't enabled, and I don't have a custom recovery. I would do a factory reset if it weren't for my Google Authenticator codes, some of which I haven't properly backed up like an idiot. Thus I was wondering what I could do to back up my phone or solve the issue.
Here is what I've already tried:
Press down VOLUME DOWN + POWER to enter recovery mode, but since I don't have custom recovery this only gives me the option to do a hard factory reset and lose all my data.
Use adb commands to access my phone, but I get "unauthorized device" because I haven't enabled developper tools on the phone.
Use the app "LG Bridge" on my mac, but it also doesn't work for the above reason.
I see three possibilities, but I don't know whether any is genuinely doable:
Solve the issue of the error message, which from what I've read requires me to wipe the cache. But how to do that without custom recovery?
Somehow bypass the UI to unlock the phone and unable developer tools
Manage to backup the phone from my computer while its locked without developper tools enabled.
Note that obviously this is my phone, I know my passwords, I have access to my Google account, etc.
Any help would be greatly appreciated, without my Google Authenticator data I'll be locked out of an important email account.
satiricon22 said:
Hello everyone,
Yesterday, after I tried to charge my LG G4, it stopped booting properly: it seems to boot "normally" under the hood, except that the system UI is not properly loading so instead I get a black screen and a message "Unfortunately system UI stopped working". If I click "ok", it comes back within two seconds (the screen stays black apart from the error message). I cannot do anything, like unlock the phone or access anything on it, despite the fact that I can hear notifications coming in.
Unfortunately phone is not rooted, developper mode isn't enabled, and I don't have a custom recovery. I would do a factory reset if it weren't for my Google Authenticator codes, some of which I haven't properly backed up like an idiot. Thus I was wondering what I could do to back up my phone or solve the issue.
Here is what I've already tried:
Press down VOLUME DOWN + POWER to enter recovery mode, but since I don't have custom recovery this only gives me the option to do a hard factory reset and lose all my data.
Use adb commands to access my phone, but I get "unauthorized device" because I haven't enabled developper tools on the phone.
Use the app "LG Bridge" on my mac, but it also doesn't work for the above reason.
I see three possibilities, but I don't know whether any is genuinely doable:
Solve the issue of the error message, which from what I've read requires me to wipe the cache. But how to do that without custom recovery?
Somehow bypass the UI to unlock the phone and unable developer tools
Manage to backup the phone from my computer while its locked without developper tools enabled.
Note that obviously this is my phone, I know my passwords, I have access to my Google account, etc.
Any help would be greatly appreciated, without my Google Authenticator data I'll be locked out of an important email account.
Click to expand...
Click to collapse
Well at least you can backup your phone in download mode with SALT ( https://bit.do/SALTatXDA ) but restoring is another story.
Sent from my LG-H815 using XDA Labs
Thanks a lot for your reply! I'll try backing up with SALT tonight. There are two things I'm wondering:
How do you think I could extra data from the backup?
Will I be able to wipe the cache or enable usb debugging with SALT? That might solve the issue.
satiricon22 said:
Thanks a lot for your reply! I'll try backing up with SALT tonight. There are two things I'm wondering:
How do you think I could extra data from the backup?
Will I be able to wipe the cache or enable usb debugging with SALT? That might solve the issue.
Click to expand...
Click to collapse
You can mount the userdata partition on Linux (e.g in FWUL) and then browse through it like it's on your phone.
You can wipe the cache paetition in SALT yes. It's in the advanced menu there (erase partitions -> select cache and only that). It will not wipe the dalvik cache though.
I dunno about the USB debugging though. Maybe there is a way but if so you would need a very unrestricted download mode (depends on model and firmware). And the whole process is not easy.
It requires again SALT and there you have in the advanced menu the option to open a shell.
Here you can mount userdata with
mount /data
But it's usually mounted already. Then it's a try and error. You could e. G. try to delete the dalvik cache etc.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
You can mount the userdata partition on Linux (e.g in FWUL) and then browse through it like it's on your phone.
You can wipe the cache paetition in SALT yes. It's in the advanced menu there (erase partitions -> select cache and only that). It will not wipe the dalvik cache though.
I dunno about the USB debugging though. Maybe there is a way but if so you would need a very unrestricted download mode (depends on model and firmware). And the whole process is not easy.
It requires again SALT and there you have in the advanced menu the option to open a shell.
Here you can mount userdata with
mount /data
But it's usually mounted already. Then it's a try and error. You could e. G. try to delete the dalvik cache etc.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Hi!
I've found out that the Google Auth keys are in /data/data/com.google.android.apps.authenticator2/databases/databases. So I need to backup /data/. However, when I show the list of partitions with SALT, I don't see /data/. Is there a way to backup /data/ on my unrooted device?
Secondly, I haven't managed to wipe the dalvik cache with the command shell, would you be able to point me in the right direction?
Thank you so much!

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