I use mine as an I-Gate with the default firmware installed on it. Has anyone looked into building open source firmware for these? The reason I ask, it seems as the device does not really transmit any packets. This could be a setting or a filter I have wrong. so maybe someone has some insight.
Hmm not sure about the X1C5 - I have the x1c3 and it definitely works as a digipeater out of the box.
I found this repo which was very helpful in understanding more about the device.
https://github.com/Mihara/x1c3tool