Griffin PowerDock-Charging not supported..

[bouldermac]

Only have had problems with my iphone 4s, all of the 3g charge fine.

Only happens sometimes, not all of the time, which is weird.

Get the little error icon with the message "charging is not supported with this device"

Any ideas on what is causing this and why it isn't consistent?

TIA

 

[Intell]

If the iPhone 3G charges correctly, then it could be a faulty cable, charger, or iPhone.