Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- May 2026
Understanding and Resolving the "Failed -Remote 39:Flashing Lock Flag is Locked. Please Unlock it First" Error
- Confirm whether the lock is permanent (OTP/e-fuse) or reversible.
- If reversible:
If you still see the error, try the legacy command:
Build Number
Tap on seven times until "You are now a developer" appears. Go to Settings > System > Developer Options . Locate and toggle on OEM Unlocking and USB Debugging . Confirm whether the lock is permanent (OTP/e-fuse) or
4. Check for Device Specific Solutions
3. Why is the Flag Locked?
