Samsung M31 Odin Mode error

[Ahem]

So I updated my M31 to the latest software, and on reboot the phone entered into Odin mode. The text says

ODIN MODE (AVB Fail)
SUPER: Build-id does not match with the reference
(SUPER) : 30278215A, (BOOTLOADER) : 29256088

Any advice on how to exit this state?

 

[Prithi Deb]

Sorry to hear that bro.. looks like your device got bricked...
Many M31 users have been facing this since the last update.

Samsung Galaxy M31 Update Rendering Phones Unusable, Some Users Report

 

[Prithi Deb]

I highly recommend you take it to a Service Center after the lockdown is over.

Or else if you have some knowledge of flashing firmware and stuff, you can follow any of the links. There you can find proper instructions to flash the previous build.

Booting issue after update android version Samsung M31

[Solution] Galaxy M31 OTA crash with Latest update

Galaxy M31 April-1 system update bricks phone - Only solution is to flash official stock ROM

I can't guarantee that this will work. Many users have claimed to get it working using this process.
If you have no idea about these then it's better to wait for the service centers to open, as failing to flash the software could cause even serious problems.