Database Users

"dm-vertity failed - need to check DRK" after downgrading from cm13 successfully

"dm-vertity failed - need to check DRK" after downgrading from cm13 successfully
Hi this only happens after playing with the EFS Folder as it is needed when you want to dawngrade . i heard that that some tools like ultimatemultitool can fix the prob on s6 but any help on note 4? plz

dm-verity is a checksum on the system partition if any file is touched or deleted on the system partition
the checksum fails and recovery says dm-verity failed
it doesnt mean nothing just flash a full stock image or custom recovery
https://source.android.com/security/verifiedboot/

Corrupted partitions?

Hello, I was trying to downgrade from N to MM and somehow i lost my system and data partition. I have the custom revolution recovery and i cant mount data or system on the mount menu, also when i try to flash any package it gives me the error "cant mout /datad/system oartition". I also tried to extract system from a original firmware and tried to flash it with fastboot, but it gives me the error "FAILED (remote: sparse flash write failure)". Is there a way to get back my partitions and reflash MM on here, or have i just won a new (very slim) paperweight? Any help would be much appreciated sice im kinda dependent on this phone.

For some reason system is able to mount now... but still nothing in the data partition , it show 0B

i have the same issue

Have you tried to flash oeminfo?

Is EMMC of my phone corrupted or not?

I am using Spice Dream UNO(Android One).
Bootloader: Unlocked
ROM: Marshmallow Stock ROM
Rooted: Yes
Recovery: TWRP
My phone suddenly started giving continuous Force closes so I restarted it and got stuck in a bootloop. Trying to Wipe any partitions failed with Error 1 and I was unable to copy or write to any partition from TWRP file manager. Nandroid backup and restore failed too.
So, I tried to flash Stock Lollipop ROM using SP Flash Tools and it flashed successfully but now all partitions show 0 MB size except Boot, IMEI and Recovery partitions.
Flashing ROM or restoring backup using TWRP still fails. Changing partition format, wiping, formatting fails too. Manual flashing using fastboot shows success but partition sizes still stay at 0MB. I have tried everything but I am not able to restore the partitions back to normal.
I haven't used the format feature of SP flash tools.
Now starting TWRP or fastboot turns the phone off and I am not able to access them.
Is EMMC of this phone corrupted or not? Can it be fixed?

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.

fastboot

Hi i got the stangest problem when i start or restart my phone i only get fastboot mode if i use the MI A! tool i can reboot in to TWRP in there if i try to install a new rom after wiping cashe, system and data, this is what comes up
Updating partition details...
...done
Full SELinux support is present.
MTP Enabled
E:recv error on uevent
Installing zip file´/sdcard1/PixelExperience_tissot
-8.1.0-20180715-0738-OFFICIAL.zip`
Checking for Digest file...
Skipping Digest check: no Digest file found
Step 1/2
Error applying update: 7 (ErrorCode::
KInstallDeviceOpenError)
Updater process ended with ERROR: 1
Error installing zip file´/sdcard1/PixelExperience_tissot
-8.1.0-20180715-0738-OFFICIAL.zip`
Updating partition details...
...done
I try to reboot only go to fastboot mode, then again with the A1 tool reboot to TWRP and restore a backup i all seems to go as it should and when restore is done i try to reboot system but only gets to fastboot mode.
I´s there anyone who can help me with this i be most greatfull

i found tha awnser i shifted frop partition B to A and it works

i find solution change from partition B to A