I have this problem with three Microsoft chagers, but can use a PowerAdd 12 v charger. I have tried differnte power pint sin two countries, and have tried a PC World charger which works for their display SP.
I believe the issue is that the Microsoft chargers are doing more than simple charging and require some form of "handshake" to activate them.
The only unusual circumstance has been that my son discharged the SP3 battery - all charger problems started since then, including refusal to acknowledge a conected charger as well as to charge.
I have even gone back to a complete Reset to try and clear the problem.
I am reluctant to retun the device, until I have a reliable back up.
Any experiences to share would be appreciated.
10-01-2017 12:36 PM