Vbmeta Samsung A12 ✦ «CERTIFIED»

avbtool make_vbmeta_image \
  --flags 2 \
  --padding_size 4096 \
  --output vbmeta_custom.img

--flags 2 disables both verity and verification (AVB 2.0 flag value).

vbmeta is a partition that stores cryptographic metadata for Android Verified Boot (AVB). On the Galaxy A12 (MediaTek or Exynos 850 variants), it ensures the system, boot, and vendor partitions haven’t been tampered with. vbmeta samsung a12

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If you are rooting with Magisk: