| Issue | Description | | :--- | :--- | | | eFuse blown (0x01). Secure folder, Samsung Pay, Health, and Warranty permanently void. | | Netflix Widevine L1 → L3 | No HD playback on Netflix, Prime Video, etc. | | OTA Failures | Official system updates via FOTA will fail (signature mismatch). | | Banking Apps | Many fail due to detected bootloader unlock + vbmeta modification. (Can sometimes bypass with Magisk Hide + Universal SafetyNet Fix, but inconsistent). |
: If you are installing a custom recovery immediately after, you must transition directly from the black screen transition into the recovery button combination ( Volume Up + Power ) without letting the phone attempt a standard system boot. Troubleshooting Common VBMeta Issues on the M31 vbmeta samsung m31