My phone's USB port just broke, and after some research, it seems like a common problem (breaking off circuit board and only charging when holding cable just right). I've also read that Sprint is trying to force an insurance claim for what is obviously a design flaw (too many reports of this, and I didn't put any unusual stress on it). I normally would not consider this, but if I pull up the screen at the edge like the light leakage problem, can I force this issue of warranty repair? I'd like to try convincing the manager at the store that this problem is not my fault first, but once I do that, I can't imagine they're going to buy that the screen lifted on its own. Any tips on how to get this repaired without $100 and a long wait without a phone for a replacement (other than stay calm, be polite, etc.)?