Firmware Mtech 8803

Power off your device, hold the specified "Boot Key" (usually Volume Down or Up), and connect it to your PC via USB.

Connect your USB adapter to the Mtech 8803’s (usually Tx, Rx, GND on a 4-pin header). Do not use RS-485 for firmware updates—use the dedicated TTL serial port. Firmware Mtech 8803

If you are a student or developer and "paper" refers to a about the firmware or the device hardware: Power off your device, hold the specified "Boot

Based on the analysis of the firmware, we recommend: Power off your device