Lora expLoRaBLE upload problems

To be frank… I am running low of suggestions. The fact that it worked ONCE with the Ambiq uploader is important. At least we know that it worked / works.

Does the board LEDS still blink ?

Try reboot your Apple / PC maybe there is something else impacting/ hanging/ impacting the port. (that won’t be the first time for me…)

Does this impact BOTH of your boards?