Download iso from (google Windows Developer Preview I cant post links yet sorry)
Download Windows 7 USB/DVD Download Tool (again google Windows 7 USB/DVD Download Tool)
When you have downloaded both and installed the usb/dvd download tool follow...
I dont know of this will be much help but check these, also do you have 3G and does anythhing happen when you press the switch button?
Ok, sorry for taking so long but I finally found the correct screwdrivers to open shift, dissambling shift now to take pics.
You could just not realized how to turn it back on after all power loss;
Turn on Windows Side
Wait untill on a bit
Press switch button
Frantically press buttons on keyboard until it turns on.
But I will post connections in a few hours or minutes I...
I know this is late but what may have happened is you accidentally disconnected the wm side I will post pictures of a few connections to check.