e: efs failed to mount - Galaxy S III Q&A, Help & Troubleshooting

i used swapper2 app and then mr.galaxy s3 stuck at samsung galaxy s3 gt-i9300 screen.
i flashed stock rom via odin same problem,only solution seems adb shell and some commands.i have efs backup on my ext-sd.
problem is i can not on usb debuging as i cant boot my phone.
please anybody help for alternativer mathods

boot into recovery and connect with adb

Related

[Solved?]fix a bootLoop [unbrick] with ADBshell?

My Samsung Galaxy Player was stuck at a blank screen(it would boot to the samsung logo then the screen would blank[With the backlight still on]) and I tried may things to fix it;
rebooting
reboot+remove SD card
hard reboot (power+vol up)
hard rebbot+clear cache
I was about to wipe the system when I decided to see if it was possible to backup my app data
with adb shell, [my device has usb debugging enabled] so I started up a adb shell and ran 'top'
looked at the stuff running had no idea what any of it was so, I closed 'top' then I found the command 'adb shell bmgr run' that looked like it might help with the backup, so I exited the adb shell so I could run the backup, and as soon as I closed adb shell, my device booted.
no idea why. anyway I'm running titanium backup now (it's been 3 weeks sine the last one)
If you device is having trouble booting try this before you wipe all the data!
BRICKED
HEy there.,
I have a samsung galaxy grand gti9082 and im facing the same problem..
there is a bootloop and i cant enter the recovery mode too.!! what do i do?
PLEASE HELP>>!!
Can you still enter download mode?
Sent from my YP-G1 using xda app-developers app

[Q] P7510 (p4wifi) Bootloop - tab doesn't connect to odin

Hi Guys!
I have a problem with my P7510.
My tab is on a bootloop
Stock recovery and download mode work
BUT
Tab is not recognized by PC or Odin
Wiping cache and factory reset don't solve this :crying:
This happened after i installed A1 Kernel on Infamous Rom 4.0.4, looking for USB charging. After installing it, no matter what, the PC wouldn't recognize the tablet (no notifications of any kind. Couldn't even find the tab on device manager. tested it on 3 computers, installing and reinstalling drivers, and the same error kept happening), it just charges it's battery. Tried several Roms and Kernels, but the problem was still there
Trying to find a solution i considered installing a stock firmware from samsung, but without USB recognition from my computer, i couldn't use ODIN3 1.85, but i stumbled upon MOBILE ODIN, so i used it to flash a stock firmware, but after a succesfull flash, the tab went into a bootloop. Tried wiping cache and factory reset,on the STOCK RECOVERY (not CWM) and the tab kept bootlooping :crying:
So, to recover my Tab, i need ODIN, but i can't use ODIN since my PC (and therefore ODIN) doesn't recognize my tablet.
So here's when i ask you ¿What can i do to recover my tablet? ¿Should i send it to a technician?
Thanks in advance
Sebastian
Some aclarations:
-I use odin as administrator on windows 7 32 bit
-i don't have Kies on the background
-I instaled and reinstalled the tab drivers
-I looked for the tablet on device manager. I didn't find it.
-The PC doesn't respond at all when i plug the Tablet (no notifications or sound),
Maybe you can try using ADB while your tab is in the Recovery mode.
I accidentally wiped my /sdcard fs and used this method to push a custom rom in the /data/media fs.
Since your Recovery mode is working, you can try to flash a new rom.
ADB Still works on Stock Recovery? (not CWM or TWRP)
ayankm said:
Maybe you can try using ADB while your tab is in the Recovery mode.
I accidentally wiped my /sdcard fs and used this method to push a custom rom in the /data/media fs.
Since your Recovery mode is working, you can try to flash a new rom.
Click to expand...
Click to collapse
My recovery is the STOCK samsung recovery, not CWM are you sure ADB still works with it?
Thanks for your reply, anyways

Stuck on boot failed to mount /efs (Invalid argument)

i have a backing up of my EFS & radio, using IMEI backup tool. I was restoring my efs, but used wrong one. it showed my IMEI as unkown. and that point i restored to my original file at which point the phone turned off, and wont go past the boot logo. I tried reloading the original firmware, no luck and i loaded TWRP. I get errors of E:failed to mount /efs (Invalid argument).
What is my best solution to upload and restore my IMG file of EFS? they are located on my laptop... Too bad the s6 edge does not have memory card slot.
I am assuming the phone wont load past boot logo because of the corrupt or missing efs files.
i have tried to re-flash with stock firmware. no change.
Problem is the phone was not in debug mode. I cannot connect via ADB. I have tried using micrusb to usb adapter with a usb stuck, the phone does not see it.
The main issue is, how can i transfer my efs image backup to the phone, and how can i restore it? Or how can I mount an empty EFS to be able to boot back into android OS, to enable debug mode.

6 edge e : failed to mount /efs (invalid argument)

Hello,
i messup with my phone in twpr , while i try to fix ..
my problem is i try to fix by kies , and when pass true
it was no boot up, its stuck on samsung logo , with flasing blu light, even i turn to download mode , or go to orginal recovery ,
in recowery i have that message...
LMY47X.G925FXXU3QOLO
e : failed to mount /efs (invalid argument)
e : failed to mount /efs (invalid argument)
dm-verity verification failed...
also i reset all my phone try to fix and i dont have anything in my phone,
i have a backup on my laptop after first root , but i cant but the phone to put in ,
or try adb but don conect with my phone to?
pleas help mee!!
Sorry for my english,
andriellka said:
Hello,
i messup with my phone in twpr , while i try to fix ..
my problem is i try to fix by kies , and when pass true
it was no boot up, its stuck on samsung logo , with flasing blu light, even i turn to download mode , or go to orginal recovery ,
in recowery i have that message...
LMY47X.G925FXXU3QOLO
e : failed to mount /efs (invalid argument)
e : failed to mount /efs (invalid argument)
dm-verity verification failed...
also i reset all my phone try to fix and i dont have anything in my phone,
i have a backup on my laptop after first root , but i cant but the phone to put in ,
or try adb but don conect with my phone to?
pleas help mee!!
Sorry for my english,
Click to expand...
Click to collapse
use smart switch from smasung to flash your phone or download a firmware from sammobile and flash it....u will do good....
success123 said:
use smart switch from smasung to flash your phone or download a firmware from sammobile and flash it....u will do good....
Click to expand...
Click to collapse
Thanks for replay me,
I did few times went go to the pass message but is steel boot only on samsung logo , i did with odin and did with smart swich , same thing.??
Looks like you wiped your EFS partition. If this is true and you have no backup, just give up immediately and bring it to a Samsung store for repairs.
Zulake said:
Looks like you wiped your EFS partition. If this is true and you have no backup, just give up immediately and bring it to a Samsung store for repairs.
Click to expand...
Click to collapse
I have backup , on pc and thats is the problem, i cat push in to the phone
andriellka said:
I have backup , on pc and thats is the problem, i cat push in to the phone
Click to expand...
Click to collapse
Restore the EFS partition from backup then.
You can push it through ADB commands.
For example: adb push efs.md5 /sdcard/TWRP/backup puts the file called efs.md5 at TWRP/backup on your sdcard. Make sure that file (the backup) is in the same folder as ADB. Then just push it all over and you should be able to restore it from TWRP.
Zulake said:
Restore the EFS partition from backup then.
You can push it through ADB commands.
For example: adb push efs.md5 /sdcard/TWRP/backup puts the file called efs.md5 at TWRP/backup on your sdcard. Make sure that file (the backup) is in the same folder as ADB. Then just push it all over and you should be able to restore it from TWRP.
Click to expand...
Click to collapse
Another thing is i try that, but i cant conect with adb , it dont see my phone, kies and odin do
andriellka said:
Another thing is i try that, but i cant conect with adb , it dont see my phone, kies and odin do
Click to expand...
Click to collapse
And i have in stock firmware and cant flash twpr, meaby am doing wrong,,
With ADB you can't see your Phone...
Test this...adb devices
Meskalin1983 said:
With ADB you can't see your Phone...
Test this...adb devices
Click to expand...
Click to collapse
You need to reflash TWRP. You could try a OTG lead to drop back up from computer onto USB and then connect to phone through OTG in recovery and restore. Had to use this method myself. Hope it works out
Chrisaa63 said:
You need to reflash TWRP. You could try a OTG lead to drop back up from computer onto USB and then connect to phone through OTG in recovery and restore. Had to use this method myself. Hope it works out
Click to expand...
Click to collapse
Thank you for all your help , i will try that but am not sure what is OTG lead, so i will check it before i will try,, but i try to reflash twpr and nothing pass by odin i try few version, and cant flash in, do i neet to do something more am on 5.1.1 andriod PDA- OLO,
Hi, i clean my laptop reinstal adb drivers ,samsung drivers , smart sweitch and try to flash TWPR, realise i need to flas first bootloader so i did , and then i flas TWPR , and then i could go to TWPR , i use OtG to copy full backup to my phone to twpr file, first recower just efs part and then full backup.
And my phone is live again,
Thank you so much , thats because that forum, i could reed all that and have idea , and especialy to Chrissa63. .
Thank you thank youuuuuuuuuuuuu,,,,,,,
Hello again, since that fix i spotted , i have a memory problem, my data is around 28 gb, i clean ,factory reset and steel same, i thin i over write some data while i try to fix the phone, is any chance how i can fix it?
Pleas Help

Soft bricked samsung p5110 tablet (ERROR on recovery --> E: failed to mount /data )

Soft bricked samsung p5110 tablet (ERROR on recovery --> E: failed to mount /data )
Hi there all experts,
after spending MANY hours on trying to solve this issue using this forum, i finally throw in the towel and make a post.
I have a soft brocked Samsung Tab 2 10.1 which has the following problem:
ERROR on recovery --> E: failed to mount /data (Invalid argument)
E:signature verification failed when using adb sideload to send TWRP or any other file to the device
What does/doesn't work?
i can get into ODIN mode and send files, but then i get error message that it failed to mount /data
ADB commands are not accepted because device is not found by ADB drivers
i can however use adb sideload (with p5110 in stock recovery mode with option receiving file via adb sideload
when i use adb sideload i get the signature verification error
I can't get into Android to enable USB developer option and i don't think that option is on. Therefor i think dat ADB can't find the device and maybe also the reason that ODIN can't flash TWRP recovery
Who gives me the golden tip to 'unbrick' my Samung Tab 10.1 device and let me 'format' my data partition so that stock firmware can be uploaden via ODIN again.
I already tried to upload the P5110 16gb PIT file using ODIN, it looks succesful but i still can't flash custom recoveries using ODIN
Thank you very much in advance for helping this newby out!!
Regards, Mark
Mark_70 said:
Hi there all experts,
after spending MANY hours on trying to solve this issue using this forum, i finally throw in the towel and make a post.
I have a soft brocked Samsung Tab 2 10.1 which has the following problem:
ERROR on recovery --> E: failed to mount /data (Invalid argument)
E:signature verification failed when using adb sideload to send TWRP or any other file to the device
What does/doesn't work?
i can get into ODIN mode and send files, but then i get error message that it failed to mount /data
ADB commands are not accepted because device is not found by ADB drivers
i can however use adb sideload (with p5110 in stock recovery mode with option receiving file via adb sideload
when i use adb sideload i get the signature verification error
I can't get into Android to enable USB developer option and i don't think that option is on. Therefor i think dat ADB can't find the device and maybe also the reason that ODIN can't flash TWRP recovery
Who gives me the golden tip to 'unbrick' my Samung Tab 10.1 device and let me 'format' my data partition so that stock firmware can be uploaden via ODIN again.
I already tried to upload the P5110 16gb PIT file using ODIN, it looks succesful but i still can't flash custom recoveries using ODIN
Thank you very much in advance for helping this newby out!!
Regards, Mark
Click to expand...
Click to collapse
I read something about the NAND erase all option in ODIN....might this be an option for me to use? I have the PIT file for the P5110 16g and stock firmware.....so do you guys/girls give me a reason not to use it to use it with some directions.

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