Clear the internal hardware watchdog registers inside long processing functions or adjust timeout registers.
If you are dealing with a completely bricked board where the USB port refuses to initialize, a hardware programming bypass is your final option. Technicians use a dedicated tool like the or RT809H chip programmer clamped directly to the board's ISP (In-System Programming) VGA/HDMI headers or directly onto the desoldered flash memory IC to rewrite the bin file manually. tms638733 firmware work