So a question about your email problems; I thought your email just stopped working, like you had changed nothing and the next day it just did not work any longer? In that case it could be a provider problem, so apparently startmail had changed something in their end.

However now reading this I am not sure about it, did you mean that after a reflash and reinstrall you cannot make mail work any longer? (which in case would probably mean that the problem is not startmail but your device...?)