Development - [RECOVERY][UNOFFICIAL] TWRP 3.6.2 for 2021 Galaxy Tab A8 10.5 [SM-...

Tony Ronaldo Matute said:

So, first you can try this disabler:

[Deprecated] Universal DM-Verity, ForceEncrypt, Disk Quota Disabler [11/2/2020]

Hi all! For the past couple of months, I've been looking into making a more universal solution to disable dm-verity and forceencrypt. Needing to take different zips, modify them for different devices, and then cross your fingers when you switch...

forum.xda-developers.com

This is just patching the fstab to remove forced encryption, something Mutlidisabler should already be doing.

Tony Ronaldo Matute said:

as well, you can try to use this fastbootd command:

[Solved] VBmeta Flashing and Disable Verity Verification Command Problem

Thought to share with you guys, as many of people like me face problem while disabling the verification while flashing VBMETA.img. Most of the time the below command does not work and causes bootloop, when Installing Custom recovery. So i...

forum.xda-developers.com

And this is just how you flash the vbmeta.img on a device with fastboot support, but Samsung uses Download Mode and Odin...and that at least seems to be functioning. I could update the fstab in TWRP so that you could more easily flash the four AVB partitions (vbmeta, vbmeta_system, vbmeta_vendor, and vbmeta_bak) from recovery, but it's not a common thing to do unless you're trying to find a workaround for a bootloader that won't let you disable AVB with a blank vbmeta.img.

Note that fastboot is for flashing physical partitions from the bootloader while fastbootd is for flashing dynamic partitions (in super.img) in userspace.