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

If you are trying to flash a custom ROM or update your device via Fastboot and encounter the error FAILED (remote: 'flashing lock flag is locked. please unlock it first') , it means your device's .

Try the modern standard command first: fastboot flashing unlock If you are trying to flash a custom

Also, enable to allow the computer to send commands. 2. Enter Fastboot Mode If you are trying to flash a custom