Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- May 2026

failed -remote 39-flashing lock flag is locked. please unlock it first

• After sending the unlock command, you often need to power cycle the device (turn it off and on) or reset it for the new unlocked state to take effect.

This error is a security safeguard. It means your device's bootloader is locked, preventing any unauthorized changes to the system partitions. Here is a straightforward guide on why this happens and how to fix it. Why is this happening? failed -remote 39-flashing lock flag is locked

Part 4: Prerequisites Before You Attempt to Unlock