I have a Nokia Lumia 920 and when I first got it I managed to sync it with Windows 8 x64 without a problem. Now when I connect it, it will charge but not connect to the "Windows Phone" app.
So far I have tried:
- Re-installing the Windows Phone app.
- Restarting the phone.
- Restarting the PC.
I am using the offical cable that came with my device.
Any other ideas?
Don't know about Windows 8 but on my Windows 7 32bit have similar problem (sometimes) .. Going to Device Manager..Right click on the Windows Phone Entry -->Properties-->Drivers-->Uninstall .. Then disconnect and re-connect the phone to PC. It starts installing the Drivers and once complete gets connected ..