Currently, I'm using the XBee S2C module and the Sparkfun XBee USB dongle. I accidentally place the positive supply to the GND of the dongle and negative supply to the VCC of the dongle.
Now, the XCTU cannot communicate to the XBee and the software asks me to reset the module. I've tried pressing the reset button of the dongle and short circuited the RST and GND pin of the dongle with the XBee mounted on it.
I've also tried various solutions like resetting the firmware versions but I always get stucked with the problem above. Any suggestion of how to fix this problem? or is the XBee damaged already?