Re: JassMan Probably the users fault
"Apple has got so paranoid their devices are now rejecting even their own chargers!"
Yes it has. Had to troubleshoot an intermittent iPhone 5 charging problem. After upgrading to iOS 8.1.2 it sometimes complained that the original charger is unsupported. Reversed the plug, charges fine. Reversed again, charges fine.
The cause turned out to be rather simple - a slightly oxidized contact on the data line. Bugger.