My red sensor light in my head phone plug. I know for a fact my iphone has never been dropped in water. I take really really good care of it. Now around November I took it to the apple store and they checked it out and it said my sensor had been lit up. I kept asking them how can this be if it's never been in any water accident. And now I have been reading some old post and found out it must have been them that messed up my sensor light. I'm sure what's what caused my lock button to break and now they caused my warranty to expire causing me not to get a replacement. Is there anything I can do?