Fastboot Mode (also known as Bootloader Mode) is a diagnostic and flashing tool used to modify the phone’s firmware, unlock the bootloader, or install system updates manually. On the Nokia G50 5G , accessing Fastboot is slightly different from older Nokia models because the device uses a standard key combination.
While still holding Volume Down , press and hold the Power button .
Keep holding both buttons for about 10–15 seconds.
Press and hold the Volume Down button.
Open a command prompt or terminal on your PC and type: