I have had my N900 overclocked for a long time. I didnt take the phone to service, I shipped it. I still have the warranty I got on it, so the phone is repairable, since Nokia has announced that as long as the phone is still under warranty, the micro usb issue will be repaired. (so i guess no, overclocking it doesnt prevent repairing hardware that HAS NOTHING TO DO with overclocking) which was my original question.