Only download firmware that is cryptographically signed or sourced from official repair centers.

: Re-install the USB drivers or try a different USB port/cable. Boot Loop

Ensure your PC recognizes the device in ADB/Fastboot mode.

: Select the "Programmer" file and the corresponding XML content files from the firmware. Connect Device

: Power off the device. Hold the "Up" or "Center" key (depending on the specific guide) while connecting it to the PC via USB.