[thelastpoet]

copper clips under the battery? no those dont

ive seen issues when people are a lil too rough with the sliding mech..the phone thinks the keyboard is open when its not...

slide your keyboard out and do a "wiggle test"

see how much give it has...normally the caps and fn buttons wouldnt be covered...if you cant see any part of any of those 2 indicators your slide is probably fubar'd and id reflash back to stock, relock and take it to a repair center or sprint store for repair or replacement...hopefully you have TEP

good luck and be easy on the slide...