Copyright 2011-2020, RFXCOM
RFXtrx Version 5.68
page 59 / 70
20. Recover from interrupted or wrong flash.
The RFXtrx can become in a loop after an interrupted flash or if you have flashed a wrong
firmware. In this case the red LED stays on and no communication is possible.
1. Disconnect the USB,
2. Make a temporary connection (no soldering required) on the backside of the PCB as
indicated below by the yellow connection,
3. Connect the USB,
4. Disconnect the temporary connection,
5. Start RFXflash and update the firmware.
RFXtrx433XL V5.1
RFXtrx433XL V5.0
RFXtrx433E
RFXtrx433