Hmm hardware failure? Looks like the wifi part is not functioning and that the wifi is broken. I don't know if this is a part you can replace or else you have to solder the new wifi to the phone. But that's just my 2 cents...
Did you do a complete reset? Sometimes it does the trick. And it reads a bit like the power button is stuck. Maybe it doesn't feel that way but if it is only a bit stuck it still thinks it has to reset. Or water damage?
