Hardware keyboard is dead i think.. Help

[mikey1234]

I purchased my Touch Pro from sprint about a month ago. Since then i've unlocked and flashed mightrom 4.12 and 4.14 on it. my hardware keyboard was giving me some issues today, and i reflashed/hard reset twice. i still have the issue, my hardware keyboard is not even working at all at the moment. i've treated the phone well, havent even dropped it.

my question is, can i bring this in to a sprint store and get it replaced?! i dont have insure but i know the keyboard is covered under 12 month warrany. i know i'll have to reflash to stock rom and relock my touch pro (dont really know how to do that, but i should be able to find directions somewhere)