Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- !exclusive! May 2026
If you receive an "unknown command" error, try the legacy command: fastboot oem unlock 4. Confirm on the Device
Also, enable to allow the computer to send commands. 2. Enter Fastboot Mode If you receive an "unknown command" error, try
After sending the command, your phone screen will likely change to a confirmation page. Use the to highlight "Unlock the Bootloader" and the Power Button to confirm. The device will then wipe itself and reboot. Troubleshooting Common Issues Enter Fastboot Mode After sending the command, your
Power off the device, then hold Power + Volume Down (common for most devices) until the Fastboot logo appears. 3. Run the Unlock Command Troubleshooting Common Issues Power off the device, then
The "flashing lock" error only appears when you are in Fastboot (Bootloader) mode. To get back there after enabling the settings above:
Connect your phone to your PC and run: adb reboot bootloader