if things keep failing, here is how to overwrite the firmware and start things afresh:
Step
1: Set the PC settings to default. (Baud
Rate: 9600, Flow Control: NONE, Data Bits: 8, Parity: NONE, Stop: Bits 1, No
API)
Step
2: Click on the Modem Configuration tab.
Step
3: Select the modem type and function
set you want. The latest firmware version for that function set will be
selected in the version drop-down box.
Step
4: Click the Show Defaults button and
check the Always update firmware box.
Step
5: Press and hold the reset button and
click Write (since our zigbees dont have a reset button, press and hold reset button means detach it from the USB board)
Step
6: When the Action Required box pops up,
release the reset button and the module should reprogram from there (release reset button means
