Hello my friend, sorry for ur lost :/
same issue here, I have tried every single "posted" solution, but no luck.
the only thing now is to have a new battery, I already demand one and I'll get it by the 25th October.
I will feedback if the phone works.
Guys... I tried everything.. Its a lost cause.. The only people who can help us to recover from this dead Lumia may be the FBI/CIA..
The only solution i found was to get a s7 edge samsung galaxy. The lumia was my favourite but no excuse for the product to stop working very poor on their behalf