Originally Posted by clsA
Sorry but if your phone will not charge it has nothing to do with it being rooted. You have another problem it could be the charger, the cord or the USB connection in the phone. Being you got the phone used it probably has no warranty except through HTC... Run the battery all the way down and send the phone to HTC... They care less if it's rooted or not.
What this man said, doubt it's anything to do with rooting.
HTC won't care if it's rooted, I've sent off two phones that has custom ROM's on them and they fixed the issues.
Also, if you return to Stock then don't update through the OTA as this can screw things up for you if you want to re-root at a later date.