I recently encountered an issue with one of my LoRa radios. One of them powers on, but the blue LED blinks slowly, and it fails to connect to the other radio. When I connect it via USB to my PC, it appears as a storage volume, and I see the following files: CURRENT.UF2, Index & info_uf2. What can I do to restore its functionality?
Hi,
Apologies for the inconvenience.
The slow fading (blinking) LED indicates the SAMD processor is in bootloader mode. You can normally only get it into that mode by double-tapping the internal reset button. But it can also fall back to bootloader mode if the firmware is erased or corrupted.
Please try updating the firmware, it should fix your issue: https://docs.sparkfun.com/SparkFun_LoRa … re_update/
Apologies again for the inconvenience,
Paul
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Thanks!
The issue has been resolved.