I was just able to separately detect two of XBP24BZ7 one-by-one on XCTU-v6.1.1 and then when I used two USB cables, I was able to detect only one radio module. FYI, I am using USB explorers from sparkfun both of which give characters back on loopback (DOUT <--> DIN) as I checked on HyperTerminal.
Both modules were ZigBee Router AT when I had detected them independently. I have bought them from Nex-Robotics, Navi Mumbai. They arrived this Monday only.
But now, both of them don't get detected. XCTU always asks to do reset and wait for 10 seconds. I tried all methods of recovery and resetting like removing slowly the module from adapter and insert back with RESET connected to GND; I used either both simultaneously or one of these techniques for resetting. Today I started trying with a bread board instead of a loose wire for reset. I don't have a push button for now.
If you could guide me as to how to proceed, it would be great.
Have I damaged my modules? If they have gone to API mode, there is no API mode checkbox in configuration window of latest XCTU. If they are sleeping, I read that only end-devices they can sleep, but they are routers as I had seen yesterday.