HELP!!! Stuck in Samsung Logo - Samsung Galaxy S8 Questions and Answers

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.

Related

Samsung Galaxy S4 Unbrick [System Magicode check fail: boot]

Ok i am trying to fix my samsung galaxy s4 for-ever now.
When i go into recovery it says:
E: failed to mount /System (invalid argument)
E: can't mount /System (invalid argument)
then when i try to install stock firmware back it gives me this message:
Secure Magicode check fail: boot
when i try to add pit file into that it says
Secure check fail: pit
Secure magicode check fail: boot
Whenever i start my phone it just freezes on the logo
and i tried to do emergency recovery in kies but it doesn't detect my device. But on the ODIN it detects it but doesn't work
HELP!!!
i think i am progressing towards this!!!
i think i am progressing towards this stage!!!
i wiped sd card in recovery mode including eveything else( wiped dalvik , device cache and all) then my samsung gt i9500 got soft bricked then tried wiping device cache and hard reset but couldnt boot then to my bad luck tried to root via odin and it show pass remark but again couldnt be booted ..
now wt shld i do???
samsung care guys says only option to install firmware ... but 50% chance of device getting dead at my own risk !!!:crying:

NEED HELP....Zenfone 5 t00f failed to mount "/system" (invalid argument)

my asus z5 stuck at loading logo. i used custom rom "clean stock rom" based Lolipop.
using TWRP 3.0-M2..
my phone cannot instal any custom Rom, the status mount: failed to mount dev/block/mmcblk09p at /
system: invalid argument
failed to mount "/System" (invalid argument)
but still can boot into fastboot or TWRP
i trying back to stock rom,, with instal stock recovery from Droidboot/fastboot and the prosses is success,
but unfortunetly the TWRP still came out. cannot be replaced by any recovery/cwm.
then i tryng with Asus flash tool with Raw File,, still error , it say didt not match SKU,,.
my phone sku is "WW" and my raw file is "ww" to.. whats happen???
my phone cannot instal anything...
any one please help or give my a solution or clue to instal this rom again or to fix my phone back to normal... thanks very much.....
im sorry for my bad english..

How to root a S8 G950F Exynos with failed integrity verification without wipe ?

Dear all,
I tried since yesterday to root my S8 Exynos (G950F). My phone is crypted and when I try to root with magisk via TWRP, I have errors to access to datas. When the system boot, I have the error unable to restart your phone. the integrity verification has failed....
Then via TWRP and the shell, I made a copy of the userdata partition on my computer (the crypted partition), then I wiped my phone, I flashed the DM Verify Disabler and then Magisk via TWRP, until then, no problem, I was root but with an empty phone.
There, I uploaded my copy of userdata partition into my S8, I boot the system and always the same error of integrity verification failed...
Now, my phone works always good (I flash the stock ROM via ODIN) but I haven't yet the root.
Is there a way to root the S8 without lost the datas ? A kind of APK or something else ?
Kind regards,
Lau
lolo1410 said:
Dear all,
I tried since yesterday to root my S8 Exynos (G950F). My phone is crypted and when I try to root with magisk via TWRP, I have errors to access to datas. When the system boot, I have the error unable to restart your phone. the integrity verification has failed....
Then via TWRP and the shell, I made a copy of the userdata partition on my computer (the crypted partition), then I wiped my phone, I flashed the DM Verify Disabler and then Magisk via TWRP, until then, no problem, I was root but with an empty phone.
There, I uploaded my copy of userdata partition into my S8, I boot the system and always the same error of integrity verification failed...
Now, my phone works always good (I flash the stock ROM via ODIN) but I haven't yet the root.
Is there a way to root the S8 without lost the datas ? A kind of APK or something else ?
Kind regards,
Lau
Click to expand...
Click to collapse
You need to reflash twrp in odin and boot into recovery (TWRP) before the phone boots the system. Id uncheck auto reset in odin and when its done flashing twrp again boot right into it. From there you want to select to keep the system read only, and then flash the DM Verity Disabler. After thats done flashing, your phone should boot up normally without seeing the integrity failed message. Its important that you boot right into twrp (recovery) after odin flashes it, if not you need to reflash twrp in odin until you successfully get into recovery before it boots your system.
I just tried 2 times this procedure, when I flash the no-verity-opt-encrypt-5.1, I have several error messages like Failed to mount '/data' (Invalid argument) or Unable to recreate /data/media folder or Unable to mount storage and Unable to mount /data/media/TWRP/.twrps.
When I boot up the phone, I have the same error of integrity failed message and I have to flash a stock system and boot img
lolo1410 said:
I just tried 2 times this procedure, when I flash the no-verity-opt-encrypt-5.1, I have several error messages like Failed to mount '/data' (Invalid argument) or Unable to recreate /data/media folder or Unable to mount storage and Unable to mount /data/media/TWRP/.twrps.
When I boot up the phone, I have the same error of integrity failed message and I have to flash a stock system and boot img
Click to expand...
Click to collapse
You have to wipe data otherwise it won't boot, there's no way round this unfortunately
lolo1410 said:
I just tried 2 times this procedure, when I flash the no-verity-opt-encrypt-5.1, I have several error messages like Failed to mount '/data' (Invalid argument) or Unable to recreate /data/media folder or Unable to mount storage and Unable to mount /data/media/TWRP/.twrps.
When I boot up the phone, I have the same error of integrity failed message and I have to flash a stock system and boot img
Click to expand...
Click to collapse
Previous poster is correct. Wipe>Format data>yes> in twrp then you should be good to go.

Failed to mount /efs

Hello there!
Is there any way to fix this problem : Failed to mount /efs (Invalid Argument)?
I have no backup of /efs.
I can still flash things to phone.
Please help!
tastrain said:
Hello there!
Is there any way to fix this problem : Failed to mount /efs (Invalid Argument)?
I have no backup of /efs.
I can still flash things to phone.
Please help!
Click to expand...
Click to collapse
Try flashing right modem through recovery, or use Odin to flash stock rom or you can try kies to recover it.
Thanks for your reply.
Currently got stock rom on phone but it won't boot, it's stuck at Samsung logo.
Device is rooted and got twrp.
Kies is stuck trying to figure out the device that is connected. And when i try recovery of firmware or something of the like(Kies is installed in french) says this model cannot be reinitialized.
Also like i said i have no backup, so no recovery key for kies either.
But the internal sdcard is recognized by Windows.
Don't know what else to do. I had no problem flashing modem.img flashed OK and such.
Is it normal when in recovery mode when i run a graphics test it says error?
Is it just a bug from the recovery mode?
Hoorray! Found Something that worked for me i'd like to share with you. Thanks to this post : https://forum.xda-developers.com/s6-edge-plus/development/updating-t3210266
Many thanks!!

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

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