Database Users

Soft brick with no efs

Hi
Unfortunately I haven't done backup before I bricked my phone. I've tried Odin to upload new roms, and Bootloaders, but nothing help at all. The phone stuck on logo.
I don't have efs, but I have access to recovery and to download mode. What shuld I do to recover my phone? Is any method to manualy put my IMEI by Odin or recovery?
In recovery <3e> I have E:failed to mount /efs (Invalid argument)

download the rom from here
download odin to pc and follow instructions to get back to stock http://www.youtube.com/watch?v=_8Tga_yKywc (skip till minute 9:00)
cheers and good luck

thats always scary

Thanks for reply
I also flashed rom from sammobile by Odin, and still stuck on logo. I m afraid only service can help me.
Thanks anyway

fokstrot76 said:
Thanks for reply
I also flashed rom from sammobile by Odin, and still stuck on logo. I m afraid only service can help me.
Thanks anyway
Click to expand...
Click to collapse
go to recovery and do a wipe data/factory reset & wipe cache and reboot..

I did wipe, factory reset and still stuck on logo. On recovery I have still on red E:failed to mount /efs (Invalid argument)

Anyone know maybe it is possibly to create efs folder with my IMEI from phone(under battery) and implement it by e.g. Samsung GS3 Int ToolKit???

[Q] Grouper stuck in a bootloop

Hey,
After a restart (from my running rom, which I dont remember what it was) my tablet got stuck with the message:
Supported API: 3
E: unknown fs_type "f2fs" for /cache
E: Can't mount /cache/recovery/last_locale​
Periodically flashing a green droid for half a second, with the message "No Command".
I can't get into recovery or fastboot, Power + Volume down changes nothing and running "adb devices" or "fastboot devices" shows nothing. Is there anything I can do to recover it?
Thanks!

If you can get into recovery then it's possible to create cache again. Then it should stop complaining and boot
Sent from my Pixel using Tapatalk

Your currently installed ROM does not support f2fs format for the /cache partition so yoi need to reformat /cache to ext4 or install a different ROM which supports f2fs

And how to do it if you can't flash the phone via twrp fastboot if nothing starts, I downloaded the cosmic os 8.0 firmware if I'm not mistaken, since I need to download the firmware and flash the teleon I need android 9 firmware

Unable to boot, Unable to mount system data and cache

Hi Hello everyone
I am having a lenovo a6000
I think its bricked so I need ur attention here
I was able to access fastboot and then booted into twrp recovery.
In recovery I noticed following message (unable to mount /system... Invalid argument, Unable to mount /data... Inavlid argument
Unable to mount /cache... Invalid argument)
I am able to mount memory card and usb
And tried to install stock rom but no success..It ended with some kinda error I don't Remember...
I also tried qpst, qfil and all the qualcomm recovery tools but no success(stuck on firehose(firmware) for about 30-40 minutes)
The time required for flashing through these softwares is max. 5-10 mins I think...
Is there any way to revive my device?
I kindly req the devs to reply
Sorry for bad English
Thank you

HELP!!! Stuck in Samsung Logo

Hi, I have a S8+ and I'm having a BIG problem. I tried to put the stock ROM in my S8+, and now it shows the message: failed to mount /efs (invalid argument) in recovery after reboot, after odin says "PASS"... So I select the option "Reboot System Now", and Samsung Logo appear and nothing happens after this. Stuck!
I have OEM Locked and can't enter in the OS... Help!
Once when I had TWRP I backup my EFS. I have this archives, but I don't know how to zip then to Flash in Odin... (look at attach files).
Help!!!

MatheusPimentel said:
Hi, I have a S8+ and I'm having a BIG problem. I tried to put the stock ROM in my S8+, and now it shows the message: failed to mount /efs (invalid argument) in recovery after reboot, after odin says "PASS"... So I select the option "Reboot System Now", and Samsung Logo appear and nothing happens after this. Stuck!
I have OEM Locked and can't enter in the OS... Help!
Once when I had TWRP I backup my EFS. I have this archives, but I don't know how to zip then to Flash in Odin... (look at attach files).
Help!!!
Click to expand...
Click to collapse
I received similar error failed to find /misc partition on recovery...however the ODIN said PASS..
I had to install TWRP and install custom OS couldn't get the ODIN to succeed.

Maybe this will help you to fix E: Can't mount EFS(invalid argument) g935f

Hi! my G935F can't boot after a corrupted EFS file was flashed it just said in the recovery e: unable to mount EFS (Invalid argument) I was tired and I have searched on every site but nothing... until the crazyness came to me!
I managed to fix it flashing twrp on odin, then booting on twrp and using the option reboot, then click on reboot on download directly from twrp it will boot on download but there is no text on the download screen, flash EFS with odin http://efs.firmware.ir/sm-g935f/ and wait(use the odin on the page to flash the EFS File), it will fail try again then it will show all the treaths completed (0 succeded/0 Failed) but that doesn't matter then reflash the stock rom using odin, let it reboot and you'll get the "Device does not have DRK" blue screen let it stay a minute then it will boot straight to recovery saying that it updated some files...
after that go to download again and use odin to flash twrp recovery and then reboot on recovery to make it reboot straight to download again, once there flash CF auto root from here https://desktop.firmware.mobi/ and there you go... let it boot it will say "the device is not seandroid enforcing" then it will automatically reboot and it will surpass the samsung logo... my phone is still on 00000000 IMEI but at least it boots...
Hope it works for you, give it a try but I have to tell you am not responsible for any damage to your device.
Tell me in the comments if it worked