Help recover data after trying to encrypt CM13 (partially successful) - LG Optimus L90

Hey, here's my situation:
Device: L90 405n
TWRP recovery
CM13
No SD-Card present
Tried to "encrypt phone" from the settings menu, the encryption step seemed to finish fine. However after the phone reboots and I enter my passcode, it hangs on the CM loader logo forever.
I thought this was a lost deal, especially after looking through the forums where the only recommendation is to wipe clean and reinstall.
And when I try to enter recovery, I can only get to the default "factory reset" and not TWRP recovery.
BUT
I can decrypt phone with a passcode I have
I can take screenshots on that passcode screen, so some things are working
After entering encryption passcode, and while the phone is showing CM logo, I can (briefly) see device as online using `adb devices` command, after about a minute
I can reboot into TWRP recovery by running `adb reboot recovery`
While in recovery, I'm able to see this in terminal:
Code:
Failed to mount '/data' (Invalid argument)
Unable to recreate /data/media folder.
Updating partition details...
Failed to mount '/data' (Invalid argument)
Unable to mount storage
Failed to mount '/data' (Invalid argument)
Full SELinux support is present.
Failed to mount '/data/media/TWRP/.twrps'
MTP Enabled
Is there anything I could do to recover my data, or is it a lost cause?

Related

[Q] Splash screen lock up & mounting issues

Hi folks,
I rooted my GT-P7300 and upgraded it to Jellybean (cm-10-20120804-UNOFFICIAL-p5) without problem (besides picasa sync not working), I noticed there was a later version cm-10-20120808-UNOFFICIAL-p5 and that's when it all went wrong
Now my tab locks up at the samsung galaxy tab splash screen.
I can go in recovery mode (running CWM v5.5.0.4) - Odin seems to be OK as this is how I installed CWM recovery
Wiping dada gives me the following
--Wiping Data...
Formatting /data...
Error mounting data!
Skipping format...
Formatting /cache...
Formatting /sd-ext...
Formatting /sdcard/.android_secure...
Error mounting sdcard/.android_secure...
Skipping format...
Data wipe complete
I tried moving back to stock recovery, but it has problems from the get go :
-- updating application...
E:failed to mount /system (invalid argument)
E:install_application_for_customer:Cant mount /system
copy application failed
-- appling Multi-CSC...
E:failed to mount /system (invalid argument)
E:install_application_for_customer:Cant mount /system
E:failed to mount /system (invalid argument)
E:multi_csc:cant mount /system
I'm kindda stuck now. so if anyone has somme smart suggestion...
fixed
larryhk said:
Hi folks,
I rooted my GT-P7300 and upgraded it to Jellybean (cm-10-20120804-UNOFFICIAL-p5) without problem (besides picasa sync not working), I noticed there was a later version cm-10-20120808-UNOFFICIAL-p5 and that's when it all went wrong
Now my tab locks up at the samsung galaxy tab splash screen.
I can go in recovery mode (running CWM v5.5.0.4) - Odin seems to be OK as this is how I installed CWM recovery
Wiping dada gives me the following
--Wiping Data...
Formatting /data...
Error mounting data!
Skipping format...
Formatting /cache...
Formatting /sd-ext...
Formatting /sdcard/.android_secure...
Error mounting sdcard/.android_secure...
Skipping format...
Data wipe complete
I tried moving back to stock recovery, but it has problems from the get go :
-- updating application...
E:failed to mount /system (invalid argument)
E:install_application_for_customer:Cant mount /system
copy application failed
-- appling Multi-CSC...
E:failed to mount /system (invalid argument)
E:install_application_for_customer:Cant mount /system
E:failed to mount /system (invalid argument)
E:multi_csc:cant mount /system
I'm kindda stuck now. so if anyone has somme smart suggestion...
Click to expand...
Click to collapse
Fixed using Odin to flash a stock ROM
Same Problem!
Can u help me with a guide? I have GT-I9070P 16G. THANK'S!

E: Failed to mount / cache - Nexus 6

Hi there,
Today morning I notice that my Nexus 6 switched off with no reason, no root or anything else, I tried to turn it on but it stuck on google logo, after that I decided to reset to factory from recovery using Wipe data/ factory reset, I surprised that I received these messages:
Formatting / data ...
E:failed to mount /cache (Invalid argument)
Formatting cache ...
E:failed to mount /cache (Invalid argument)
E:failed to mount /cache (Invalid argument)
E:failed to mount /cache (Invalid argument)
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:failed to mount /cache (Invalid argument)
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
E:failed to mount /cache (Invalid argument)
E:Can't mount /cache/recovery/last_install
E:Can't open /cache/recovery/last_install
E:Failed closing /dev/block/platform/msm_sdcc.1/by-name/misc
(I/O Error)
E:failed to mount /cache (Invalid argument)
What can I do now ? I just put my mobile on charging at night and went to sleep
Thank you in advance.
This appears to be a common issue that has vexed Nexus 7 owners in the past. The problem is related to corruption from an update. The usual fix would be to flash a factory image, but to do that you would have to unlock the bootloader. I doubt you did. Fortunately, there still is a solution that may help: sideloading the Android N Preview 1 OTA zip Google provided some months back. It's a complete system image, and installing it should get your device running. Afterward, you can unlock the bootloader (recommended) and flash the latest factory image from Google. If unlocking the bootloader is something you don't wish to do, subscribing to then unsubscribing from the Android N Preview program should push an Android 6.0.1 factory image to your device.
Back up your pictures and documents on internal storage before doing this or else they will be lost.
Strephon Alkhalikoi said:
This appears to be a common issue that has vexed Nexus 7 owners in the past. The problem is related to corruption from an update. The usual fix would be to flash a factory image, but to do that you would have to unlock the bootloader. I doubt you did. Fortunately, there still is a solution that may help: sideloading the Android N Preview 1 OTA zip Google provided some months back. It's a complete system image, and installing it should get your device running. Afterward, you can unlock the bootloader (recommended) and flash the latest factory image from Google. If unlocking the bootloader is something you don't wish to do, subscribing to then unsubscribing from the Android N Preview program should push an Android 6.0.1 factory image to your device.
Back up your pictures and documents on internal storage before doing this or else they will be lost.
Click to expand...
Click to collapse
Thank you for your reply, i don't care about the data in my phone I will go with Android N.
If you have a link it may help I will be appreciated.
Thank you,
Check the General subforum. There should be an entire thread about the Android N Preview there, including how to install it.

Bricked Huawei P9/

Hello
I have a problem.
The smartphone is constantly loaded into the eRecovery
When downloading the TWRP, it is displayed in red:
Failed to mount /data (invalid argument)
Unable to recreate /data/media folder
Failed to mount /cust (invalid argument)
Failed to mount /data (invalid argument)
Failed to mount /system (invalid argument)
TWRP does not see the memory of the smartphone and does not see a memory card.
How to fix this problem?
I don't know what are you going to do but try to do a factory reset using twrp
Go to Huawei website and download firmware M.M
install stock recovery if you install TWRP
Move file update to sd card and move to dload
After that install use 3 Buttons
Follow this thread
https://forum.xda-developers.com/p9/help/huawei-p9-brick-easiest-to-unbrick-t3662350

Verification Fail after booting Tab S2

Please bear with this lengthy description of my problem.
I successfully rooted my stock Samsung Galaxy Tab S2 SM-T713 Nougat but made 2 mistakes in the process. I neglected to copy the Build Number for the tablet and, after rooting and checking that everything worked OK, I turned off OEM unlock. The next time I started the tablet I got the message "Verification Failed, Unable to restart your device" with a yellow triangle! The tablet was bricked.
Since I did not know the build number for the stock rom, I found an flashed a supposedly “generic” JazzRom which brought the tablet back to life and it was unrooted. I was able to discover that the stock rom (T713XXU2BRB2) which I downloaded and flashed, I then flashed TWRP. So far so good.
I then booted into TWRP recovery and tried to do a factory wipe which produced a number of errors:
Could not mount /data and unable to find crypto footer.
Failed to mount '/data' (Invalid argument)
Unable to recreate /data/media folder.
Updating partition details...
Failed to mount '/data' (Invalid argument)
...done
Unable to mount storage
Failed to mount '/data' (Invalid argument)
Full SELinux support is present.
Unable to mount /data/media/TWRP/.twrps
MTP Enabled
Failed to mount '/data' (Invalid argument)
Formatting Cache using make_ext4fs...
Updating partition details...
Failed to mount '/data' (Invalid argument)
...done
Unable to mount storage
I then flashed SuperSU and when the tablet restarted I got "Verification failed. Unable to restart your device. The integrity verification has failed. You need to reset your device to factory default settings. This will erase all your data."
Now, my question is - can this be fixed?
kgash said:
please bear with this lengthy description of my problem.
I successfully rooted my stock samsung galaxy tab s2 sm-t713 nougat but made 2 mistakes in the process. I neglected to copy the build number for the tablet and, after rooting and checking that everything worked ok, i turned off oem unlock. The next time i started the tablet i got the message "verification failed, unable to restart your device" with a yellow triangle! The tablet was bricked.
Since i did not know the build number for the stock rom, i found an flashed a supposedly “generic” jazzrom which brought the tablet back to life and it was unrooted. I was able to discover that the stock rom (t713xxu2brb2) which i downloaded and flashed, i then flashed twrp. So far so good.
I then booted into twrp recovery and tried to do a factory wipe which produced a number of errors:
Could not mount /data and unable to find crypto footer.
Failed to mount '/data' (invalid argument)
unable to recreate /data/media folder.
Updating partition details...
Failed to mount '/data' (invalid argument)
...done
unable to mount storage
failed to mount '/data' (invalid argument)
full selinux support is present.
Unable to mount /data/media/twrp/.twrps
mtp enabled
failed to mount '/data' (invalid argument)
formatting cache using make_ext4fs...
Updating partition details...
Failed to mount '/data' (invalid argument)
...done
unable to mount storage
i then flashed supersu and when the tablet restarted i got "verification failed. Unable to restart your device. The integrity verification has failed. You need to reset your device to factory default settings. This will erase all your data."
now, my question is - can this be fixed?
Click to expand...
Click to collapse
FORMAT /data
ashyx said:
FORMAT /data
Click to expand...
Click to collapse
Thank you. Actually I had to format twice for some reason. The tablet is now rooted and everything is now working great.
kgash said:
Please bear with this lengthy description of my problem.
I successfully rooted my stock Samsung Galaxy Tab S2 SM-T713 Nougat but made 2 mistakes in the process. I neglected to copy the Build Number for the tablet and, after rooting and checking that everything worked OK, I turned off OEM unlock. The next time I started the tablet I got the message "Verification Failed, Unable to restart your device" with a yellow triangle! The tablet was bricked.
Since I did not know the build number for the stock rom, I found an flashed a supposedly “generic” JazzRom which brought the tablet back to life and it was unrooted. I was able to discover that the stock rom (T713XXU2BRB2) which I downloaded and flashed, I then flashed TWRP. So far so good.
I then booted into TWRP recovery and tried to do a factory wipe which produced a number of errors:
Could not mount /data and unable to find crypto footer.
Failed to mount '/data' (Invalid argument)
Unable to recreate /data/media folder.
Updating partition details...
Failed to mount '/data' (Invalid argument)
...done
Unable to mount storage
Failed to mount '/data' (Invalid argument)
Full SELinux support is present.
Unable to mount /data/media/TWRP/.twrps
MTP Enabled
Failed to mount '/data' (Invalid argument)
Formatting Cache using make_ext4fs...
Updating partition details...
Failed to mount '/data' (Invalid argument)
...done
Unable to mount storage
I then flashed SuperSU and when the tablet restarted I got "Verification failed. Unable to restart your device. The integrity verification has failed. You need to reset your device to factory default settings. This will erase all your data."
Now, my question is - can this be fixed?
Click to expand...
Click to collapse
Im glad you work it out. Quick question for, my friend, did you rooted t713 with the latest nougat update ->
NRD90M.T713XXU2BRB2?
Thx
netgar said:
Im glad you work it out. Quick question for, my friend, did you rooted t713 with the latest nougat update ->
NRD90M.T713XXU2BRB2?
Thx
Click to expand...
Click to collapse
Yes I did.
I am trying to odin the new T713 firmware but for some reason odin keeps failing in the end. Is there a certain odin I should be using?
Danilynne said:
I am trying to odin the new T713 firmware but for some reason odin keeps failing in the end. Is there a certain odin I should be using?
Click to expand...
Click to collapse
Post up the errors so there's more to go on.
Thanks I finally got it, I had the wrong firmware, I needed xarbrb2.
Sent from my SM-N950U using XDA Free mobile app

Question Every custom ROM I flash is stuck on their bootscreen

Hello.
I have a Redmi Note 10 Pro (8GB RAM Version) with an official unlocked bootloader.
I have managed it to install TWRP, TWRP works, that means, I can boot into it, and use it.
But if I flash a ROM ZIP file over TWRP, every custom ROM gets stuck at its bootscreen. It shows the
bootscreen of the offending custom rom, then nothing happens anymore, its just stuck there.
Does anyone here know, wht I do wrong?
Regards
Try flashing the fastboot firmware using pc so that it may fix corrupt partitions, if any.
or maybe the universe is conspiring against you
Can you tell me how I do that (Flashing over pc?)
ME20001 said:
Hello.
I have a Redmi Note 10 Pro (8GB RAM Version) with an official unlocked bootloader.
I have managed it to install TWRP, TWRP works, that means, I can boot into it, and use it.
But if I flash a ROM ZIP file over TWRP, every custom ROM gets stuck at its bootscreen. It shows the
bootscreen of the offending custom rom, then nothing happens anymore, its just stuck there.
Does anyone here know, wht I do wrong?
Regards
Click to expand...
Click to collapse
Try to format data with yes before and after you flash a ROM via twrp
Tried to format data with yes, shows following errors:
Failed to mount `/system_ext´(Invalid argument)
Failed to mount `/product`(Invalid argument)
Updating partition details...
Failed to mount ´/system_ext`(Invalid argument)
Failed to mount `/product`(Invalid argument)
...done
Full SELinux support is present.
MTP Enabled
Done.
You may need to reboot recovery to be able to use /
data again.
TWRP will not recreate /data/media on an FBE device.
Please reboot into your rom to create /data/media [Note from the narrator: Thats not possible, every ROM stucks on boot]
Formatting Metadata using mke2fs...
Done.
Updating partition details...
Failed to mount ´/system_ext´(Invalid argument)
Failed to mount ´/product´(Invalid argument)
...done
ME20001 said:
Tried to format data with yes, shows following errors:
Failed to mount `/system_ext´(Invalid argument)
Failed to mount `/product`(Invalid argument)
Updating partition details...
Failed to mount ´/system_ext`(Invalid argument)
Failed to mount `/product`(Invalid argument)
...done
Full SELinux support is present.
MTP Enabled
Done.
You may need to reboot recovery to be able to use /
data again.
TWRP will not recreate /data/media on an FBE device.
Please reboot into your rom to create /data/media [Note from the narrator: Thats not possible, every ROM stucks on boot]
Formatting Metadata using mke2fs...
Done.
Updating partition details...
Failed to mount ´/system_ext´(Invalid argument)
Failed to mount ´/product´(Invalid argument)
...done
Click to expand...
Click to collapse
Try to flash stock ROM via PC with mi flash (important don't lock bootloader in miflash)

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