1. "Only official released binaries are allowed to be flashed" (Prenormal RMM/KG State)
This is a more universal method that gives you full control over the files. By patching the full AP firmware file (which includes boot.img and vbmeta.img ), Magisk can disable AVB and dm-verity during the patching process. vbmeta samsung a12
The vbmeta partition on the Samsung Galaxy A12 Go to product viewer dialog for this item. The vbmeta partition on the Samsung Galaxy A12
Flashing a custom image, like a patched boot file for root or a custom recovery (e.g., TWRP), changes the data on a partition. This causes the verification hash in the stock vbmeta to no longer match, leading to a boot failure. To circumvent this, you replace the stock vbmeta with a custom one that has its verification and dm-verity checks disabled. To circumvent this, you replace the stock vbmeta
Working with vbmeta on the Samsung Galaxy A12 is a fascinating but precise process. It provides an invaluable lesson in Android security, signed binary verification, and the obstacles manufacturers place to protect their operating systems.
Because Samsung uses its own proprietary download protocol instead of standard Fastboot, you must use Odin to flash the file. Odin requires files to be packaged in a .tar format. Convert .img to .tar