hi,
regarding to your problem, the data can not be transmitted to zigbee module, it may rely on the programming interface, or hardware design or code design. I can provide you suggestion on the programming interface. if the problem is on HW or SW, I suggest you also consult wireless community
Wireless Connectivity
with simple flash, the flash configuration file is 9S08PT8.xml, attached video is for how to use simple flash, it't not for PT8 but method is the same for your device.
Have a great day,
Jennie Zhang
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