You cannot unlock the bootloader through a computer alone; you must first give the phone permission from within the Android OS. Open > About Phone .
If you receive an "unknown command" error, try the legacy command: fastboot oem unlock 4. Confirm on the Device
Try the modern standard command first: fastboot flashing unlock You cannot unlock the bootloader through a computer
Modern Android security prevents unauthorized software changes unless the "lock flag" is explicitly flipped by the user. Here is how to fix this and successfully unlock your device. 1. Enable OEM Unlocking
Also, enable to allow the computer to send commands. 2. Enter Fastboot Mode Confirm on the Device Try the modern standard
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
The "flashing lock" error only appears when you are in Fastboot (Bootloader) mode. To get back there after enabling the settings above: Enable OEM Unlocking Also, enable to allow the
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 .