: The vbmeta.img is a cryptographically signed image containing verification data (like cryptographic digests) for the boot, system, and other partitions.
avbtool make_vbmeta_image \ --flags 2 \ --padding_size 4096 \ --output vbmeta_custom.img vbmeta samsung a12
If you're looking for information on for the Samsung Galaxy A12 Go to product viewer dialog for this item. : The vbmeta