You cannot flash custom images if your bootloader is locked.
Check your USB cables and ensure drivers are updated. crdroid bootimg install
How to Install crDroid Using the boot.img Method: A Complete Guide You cannot flash custom images if your bootloader is locked
If you are looking to breathe new life into your Android device, is one of the most reliable custom ROMs available. Known for its performance, stability, and "stock-plus" customization, it’s a favorite in the enthusiast community. and "stock-plus" customization
Once your device is in Fastboot mode (indicated by a "Fastboot" logo or text on the screen), verify the connection: fastboot devices Use code with caution.
Enable on your phone (found in Settings > Developer Options). Connect your phone to your PC.