The sketch in your post 4 works fine in my environment.
Please be more specific.
Issue : radio.begin() is not working.
Is your device printed “LoRa-E5-HF”?
The sketch in your post 4 works fine in my environment.
Please be more specific.
Issue : radio.begin() is not working.
Is your device printed “LoRa-E5-HF”?