https://www.youtube.com/watch?v=RguRQUXWLCY
If you are using a CC2530 or CC2531; it is a common issue for this adapter to crash (due to its outdated hardware). Reflashing the firmware should fix the problem. If it happens often consider flashing the source routing firmware or upgrade to a more powerful adapter.
wget https://github.com/Koenkk/Z-Stack-firmware/raw/master/coordinator/Z-Stack_Home_1.2/bin/source_routing/CC2531_SOURCE_ROUTING_20211116.zip
so login to pi
Check if WiringPi is installed (should be) by runninggpio -v
if you don’t see the version in the outputsudo apt install wiringpi
Navigate to the folder
cd flash_cc2531
and see if the USB device is wired correctly running:
./cc_chipid
You should see ID = b524.
if any other outcome is given, check your wires.
md flash
cd flash
wget https://github.com/Koenkk/Z-Stack-firmware/raw/master/coordinator/Z-Stack_3.0.x/bin/CC2531_20190425.zip
or use the alternative above....
unzip file
cd ..
Clear the flash with
./cc_erase
Upload new firmware using
./cc_write /home/pi/flash_cc2531/flash/CC2531ZNP-Prod.hex
this will take about 3 min.