Once you have your vbmeta.tar file ready, follow these steps to flash it onto your device: Step 1: Boot the M31 into Download Mode Turn off your Samsung Galaxy M31 completely.
To help you move forward, are you looking to flash a (like LineageOS or Pixel Experience), or are you trying to achieve Magisk Root on your Samsung M31? Share public link
, you cannot simply use a "fastboot" command to disable verification because Samsung uses for flashing. 1. Requirements Unlocked Bootloader:
You can now proceed to flash Magisk or your favorite Custom ROM without triggering an AVB bootloop. Troubleshooting Common VBMeta Errors on the M31 Issue 1: Odin shows a "FAIL" error during flashing
Click on the or CP slot (or the AP slot, though USERDATA is preferred for isolated images to avoid verification conflicts depending on your Odin version). For standalone VBMeta files, clicking the USERDATA or AP slot and selecting your vbmeta.tar file is standard practice. vbmeta samsung m31
If your phone is stuck in a bootloop or showing an error screen:
While holding the buttons, connect the phone to your computer using a USB cable. Release the buttons when you see a warning screen.
You flashed a Custom ROM or GSI without successfully disabling Android Verified Boot first.
Common scenarios:
Boot back into Download Mode, flash the vbmeta.tar file again, and immediately boot into your recovery to perform a Format Data (typing "yes" in TWRP) to clear out system encryption.
Re-flash stock firmware, then re-unlock the bootloader, flash vbmeta_disabled.tar , and finally flash the custom recovery.
The vbmeta.img you flashed does not match your firmware version. Flash the stock vbmeta.img from your firmware to get the phone booting, then create a new patched one.
Go to Settings > About Phone > Software Information and tap Build Number seven times to unlock Developer Options. Go back to Developer Options, enable OEM Unlocking , and then boot into download mode to finalize the bootloader unlock. Once you have your vbmeta
VBMeta is a critical component of modern Android security. For Samsung users, missing a specific step involving this file usually results in a frustrating "Bootloop" or the dreaded "VBMeta Error" screen.
Re-enter Download Mode and re-flash the correct blank or disabled vbmeta.tar file using Odin. Ensure your stock firmware version matches the origin of your file. Issue 2: Odin shows a "FAIL!" message during flashing
Force your device out of Download Mode by pressing and holding for about 7 seconds.