Why doesn't my iphone lock button work?

The lock button on my iPhone 4 is jacked up and doesnt work, if i bring it in to the apple store can they replace it if i still have warranty?

i have an iphone 4 and i sweat alot and the home button doesnt work anymore but theres a work around so i can still exit an app but how do i take a screen shot if the button doesnt work?

When i took it apart, there were 2 rubber pieces that came off but im not sure where exactly they go again... i believe the rubber peices have something to do with why my LOCK button and my other button on the right dont work at all now??? Please help...

So my lock button doesn't work and I need to turn my phone off bc I'm having connection problems and the sprint lady told me to turn it off. Only problem is I can't, so I was thinking if I drain the battery to turn it off, will I be able to turn it back...

I hope this is not a lost cause because i can NOT afford to buy another phone, new or old..The top button doesnt work anymore..its frozen and wont shut on/off...its stuck on the home screen and it has the spiral right before it goes off frozen on the...

like ill move it from side to side, and its still on lock! im confused cause it was working just fine, and then i picked it up like 20 minutes later and it then it didnt work.... any suggestions? what should i do?

my home button has already been broken, so i jailbroke it to be able to use the phone better. it got bricked and now it wont boot past the apple logo and it always says batteries dead and too charge it but wont move from that state of low battery. whenever...