[ThisIsSlender]

I have the Lumia 920 and have been using the wireless charger (flat one) since I have had the phone. However last week it stopped charging with the charger, and now does not charge at all when placed on the charger, no lights even come on?

[DBDev]

I think you should take your charger back to where you bought it

[gedzum]

You don't happen to have another wireless charging enabled phone do you? It will be hard to test if the problem is with the phone or the charger itself otherwise. Other than that, as mentioned above, it is probably best to just try and get a replacement.

[Derausgewanderte]

if you don't have a friend with an L920 I would try to go to closest ATT store with both charger and phone and determine if it's the charging coil or the charger. Could be as simple as the AC connection on the charger or the charging coil in the phone.