Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- |best| «NEWEST · 2025»

Connect your phone to your PC and run: adb reboot bootloader

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 . Connect your phone to your PC and run:

Power off the device, then hold Power + Volume Down (common for most devices) until the Fastboot logo appears. 3. Run the Unlock Command If you receive an "unknown command" error, try

You cannot unlock the bootloader through a computer alone; you must first give the phone permission from within the Android OS. Open > About Phone . Connect your phone to your PC and run:

If you receive an "unknown command" error, try the legacy command: fastboot oem unlock 4. Confirm on the Device

Tap 7 times until you see "You are now a developer". Go back to System > Developer Options . Find OEM Unlocking and toggle it ON .

Try the modern standard command first: fastboot flashing unlock