I messed up my compass with another magnet is there any way 2 fix this it happened 2 my 3GS but I returned that 1 I don't wanna return in this 1 cuz I just got it and I wanna save my replacement on a more serious problem any way I can fix it cuz the compass is really bad itll move around win I'm not moving and sometimes b a full 180 degrees rong any help appreciated