fastboot oem device-info # Or for newer devices: fastboot getvar all Look for: (bootloader) unlocked: no and (bootloader) verity-state: verified (167z) Depending on your OEM, use one of these:
(bootloader) unlocked: no (bootloader) verity-state: green (locked & verified) | Error Message | Cause | Solution | |---------------|-------|----------| | Flashing lock is not allowed | Modified system partition | Re-flash full stock ROM | | Image is not signed | Custom kernel or recovery | Find official 167z images | | Verity failed (hash mismatch) | vbmeta mismatch | Use OEM's vbmeta with disable flags removed | | Device rolled back | Downgraded to older build | Must flash exactly 167z or newer | Part 5: Verified vs. Unverified – Real-World Consequences After unlocking a "167z Verified" device: se bootloader unlocking relocking 167z verified
fastboot flash vbmeta vbmeta_custom.img --disable-verity --disable-verification --flags 0x2 This keeps the bootloader unlocked but restores verified boot checks. It doesn't fix SafetyNet but removes the orange state warning. fastboot oem device-info # Or for newer devices:
Note: "167z" appears to be a specific firmware version, build number, or device identifier (possibly a typo from "167Z" or an internal code for a Xiaomi, Realme, or Motorola device). This article will treat it as a verified hardware/software revision point for a smartphone OEM. In the world of Android customization, the bootloader is the gatekeeper. For developers, power users, and custom ROM enthusiasts, unlocking it is the first step toward freedom. However, manufacturers have introduced layers of security—often branded as "SE" (Secure Elements) or "Verified" states —to complicate this process. Note: "167z" appears to be a specific firmware