I'm attempting to sync my Windows Phone 8 with my ActiveSync server and are receiving a lot of error codes when the device is using ActiveSync version 14.1. If I restrict the device to use only ActiveSync 2.5, it works OK.
The main error codes are 8500#### series errors. Is there a list of Windows Phone 8 error codes and what they mean?
Also, is there a way to get the error log information from the device, some type of diagnostic mode?
How can I unlock my phone (Nokia 920 Windows Phone 8) for Development purposes?