RFD900x FAQ
www.rfdesign.com.au
4
Last update 06/08/2019
Question/Issue:
My modem has a solid red LED
Answer checklist:
This indicates that the modem is stuck in bootloader mode
1. Try to reflash firmware using the RFD modem tools.
2. If the tools cannot establish boot mode try to manually force bootloader. This is done by
holding a short, on pad one and two on the +, a and u modems, or, pad nine and shield for x
series modems, as you apply power to the device. The pads are located between the pin
header and shield of the modem and are numbered starting from pad one, the left most pad.
After the power up, the short can be removed.
3. If, after several attempts at 2., the issue remains it will be necessary to contact your seller
to arrange a modem swap.
