Hi there,
Unfortunate! I just don’t understand the reasoning behind this firmware/bootloader
“NON openness”, Really wrecks the deck IMO. Is there and open version they could use? but choose not too?
They just don’t get it, Stifling good products and progress.
GL 
PJ
seems we need an OPEN “AT” firmware and BL to go with it. LORA another HURDLE for dev’s