no python prompt after downgrading firmware

[jmarcelino]

@rolfhut
Why do you need to go so so far back to get working BLE? Unless you have a very particular scenario I can assure you don't have to - and there's been massive improvements since then.

What issues are you having with BLE? I haven't tried the very latest version yet but things were working in 1.6.9.

On the problem itself I think - not sure - 1.5.0 is before some changes in storage to hold the device keys securely, maybe try 1.5.1 if you really feel you need to.