[roz1]

The charger circuits on cellphones are pretty robust (because manufacturers know that most people will buy the cheapest charger they can find). You'd have to be really unlucky to damage it. Usually when you buy a cheap charger it will have limited current sourcing ability which means it will just take longer to charge.

It's possible that the connector is damaged as you suggested. You would probably be able to tell by looking at it.

Obvious thing to try: Did you try removing the battery? I'm not familiar with the insides of the EVO but many chargers will maintain settings as long as the phone has power. Pulling out the battery might help reset the charging circuit. Sometimes there is a bunch of capacitance that needs to discharge, so leave it out for at least 30 seconds.

Good luck.