Downgrade Firmware
Original authors @serrj-sv and @rezmus. Discuss here.
Works only if the previous firmware was with an open Telnet.
If you upgraded twice to a bad firmware, it does not work.
If you have bad firmware from the factory - it does not work.
- Open Gateway
- Solder USB UART adapter (GND to GND, RX to TX, TX to RX)
-
Connect adapter to USB. UART setting: 38400 8n1, disable flow control (rts/cts)
-
Power gateway with build-in USB power