I had this same problem with an HTC 8X and a cheap off-brand charger I got from Amazon. What was weird about it was that it would only repro on certain outlets

I had this same problem with an HTC 8X and a cheap off-brand charger I got from Amazon. What was weird about it was that it would only repro on certain outlets - if I plugged it in on the other side of the room, it would work just fine. It also didn't repro with any other phones. I would guess there was something else on the original circuit that was dirtying the power enough that the charger couldn't use it on certain phones - but I never did find the root cause.