S7 Brick without apparent solution - Samsung Galaxy S7 Questions and Answers

is left in the logo and when I enter the data recovery failed to mount the efs (argument invalid) but I am not used to flash any rom some help from an expert?

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XT1032 bricked?

Hi everyone,
I have a XT1032 with a loop boot (It hangs everytime on the Motorola logo).
First of all I was unable to enter into the recovery mode. And I've unlocked the mobile with the motorola code and flashed with the stock recovery. After that I was able to enter into recovery mode.
I've tried to install a ROM via adb sideload but at the 60% always failed and says me that the package couldn't be validated.
I've tried to wipe the data/cache, also I tried to format the partitions (with cache It has gone OK but formatting the userdata partition tolds me that was unsuccessful due blkdiscard errors)
After that I've tried to flash a new recovery (TRWP and CWM) but unfortunately always said the mismatched partition size error, and It's impossible to flash any recovery (only worked with the stock).
Any idea to recover my XT1032?
Thank you!

[Q] [HELP] S6310N frozen during boot up

My S6310N refuses to complete boot up, after trying quite a few ROMs stays frozen during booting. Even giving me errors in the recovery, are the kind Unable to mount '/ data'.
This is the error log during wipes on TWRP recovery: i1352.photobucket.com/albums/q655/obiwan2208/zx.jpg
For the rest I can flash with Odin stockROMs and TWRP, but after the Samsung's animated logo leaving the SAMSUNG letters flashing and stay frozen there.
I tried to make wipes and although do something, continue without mount 'storage', '/data', etc.
Also with Odin I checked the option "Nand Erase All".
Has been corrupted the file system? Must to be formated somehow? Any fix will be welcome. ThnX
Fixed by myself
It's done
As I see the smartphone can't mount '/data' I played with TWRP recovery and I formated 'data' partition.
Then for be more sure and works I checked out making one wipe (before gave errors) and it's OK: any red text.
Right now I'm flashing stockROM, TWRP, SuperSU... :victory:
Seems that 'data' partition was kept corrupted despite had to flash stockROMs

SM j700h - failed to mount efs/cache

I bricked my phone by rooting and flashing firmware couple of times.
Now the phone is bootlooping.
Installing firmware ends up in red letter with
" failed to mount efs
failed to mount cache"
........................
Any way to recover or fix EFS folder ?
I got no backup at all.

[Completed] Samsung Galaxy Note 2 (GT-N7100)-soft bricked after an official update

Hi friends, my samsung Galaxy Note 2 (GT-N7100), got soft bricked after an official software update. I tried to recover it by doing few processes that i found here on this forum, but none worked for me. Here is the list of procedures i did and their out come. please read them and lem me know what can i do further.
1. Tried to factory reset and clear cache partition and reboot: when i entered the android official recovery (Android system recovery<3e>, KOT49H.N7100XXUFNL1) it shows
E: failed to mount/cache (no such file or directory)
E: Can't mount/cache /last_recovery
E: failed to mount/data (no such file or directory)
E: Can't mount/data /log/recovery _log.txt
E: Can't mount/cache /last_install
etc.... in red scrolling and finallly shows rebbo system /wipe data/factory reset options , even after doing factory reset and or wiping cache partition it still unable to bootup, struck at samsung logo screen.
2. Tried to install custom recovery TWRP.. failed to install, i tried different versions of TWRP specified for my phone , and also with different versions of odin.. still unable to install
3. Tried to flash official rom downloaded from sammobile, via odin, but this also failed.
4. tried to root by CF-Autoroot through odin. but failed again.
Note: My phone was on official ROM and recovery when it was bricked, and was never touched to root or flash anything into it before. and i never activated developer options in my phone and the USB debugging mode is also never activated.
please suggest me how to trouble shoot this now. I am not a techie, i just learned above procedures from forums like this, so please try to give me detailed step by step procedures. thanks.
XDA Visitor said:
Hi friends, my samsung Galaxy Note 2 (GT-N7100), got soft bricked after an official software update. I tried to recover it by doing few processes that i found here on this forum, but none worked for me. Here is the list of procedures i did and their out come. please read them and lem me know what can i do further.
1. Tried to factory reset and clear cache partition and reboot: when i entered the android official recovery (Android system recovery<3e>, KOT49H.N7100XXUFNL1) it shows
E: failed to mount/cache (no such file or directory)
E: Can't mount/cache /last_recovery
E: failed to mount/data (no such file or directory)
E: Can't mount/data /log/recovery _log.txt
E: Can't mount/cache /last_install
etc.... in red scrolling and finallly shows rebbo system /wipe data/factory reset options , even after doing factory reset and or wiping cache partition it still unable to bootup, struck at samsung logo screen.
2. Tried to install custom recovery TWRP.. failed to install, i tried different versions of TWRP specified for my phone , and also with different versions of odin.. still unable to install
3. Tried to flash official rom downloaded from sammobile, via odin, but this also failed.
4. tried to root by CF-Autoroot through odin. but failed again.
Note: My phone was on official ROM and recovery when it was bricked, and was never touched to root or flash anything into it before. and i never activated developer options in my phone and the USB debugging mode is also never activated.
please suggest me how to trouble shoot this now. I am not a techie, i just learned above procedures from forums like this, so please try to give me detailed step by step procedures. thanks.
Click to expand...
Click to collapse
Greetings and welcome to assist. It sounds like you need to flash a pit file. The easiest way to recover your device is use kies/smart switch emergency firmware recovery. Unfortunately this will wipe all your data but should fix the phone
Good Luck
Sawdoctor

S6 lost /EFS and now stuck on boot logo

Title basically says it all, mt S6 Sm-G920F lost its /EFS partition when i was trying to back it up i clicked the wrong button and erased it. I have no backup of it and my phone won't boot, i can just get to TWRP. What can i do?
thanks

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