Listening mode no longer works in safe mode after failed firmware upgrade

[friedl_1977]

Hi @nurbrun -

@nurbrun

Reset wifi credentials from normal operation (setup): cannot determine (LED is the only indicator if this has worked)

Well, my guess would be that if Clear WiFi Creds worked and you restart (or even without restart) the device it would have entered Listen Mode. So if you press+hold Setup for around 15 seconds, and you do not pick up the device from a mobile phone or some other device, I am fairly sure the Clear Credentials failed.

@nurbrun

My hunch is that the buttons themselves can correctly interrupt, however the majority of functions/variables they are calling are missing in both operating states.

Seems likely to be the case then yes. Interrupts should work regardless of the state. I have interrupts calling ListenMode and they work regardless, that being said, IF your code is 'accessible'.

It seems DFU mode might to be your Hail Mary here. Do you have USB access?

@nurbrun

Does anyone have experience with a failed OS upgrade that causes listening mode to fail in safe mode?

I do but not necessarily with interrupting OS update, but I managed to completely confuse a Photon by removing power during some critical function. See this post.

I threw everything I had at it, but I have not been able to restore it even using the debug shield I would not expect such dire consequences from a failed OS update though. There are some really clever guys in here, maybe someone else can shed more light. I will dig a little deeper, if I find something I will let you know.

Regards,
Friedl.