Iphone 4s lock/ power button unresponsive/ stuck

[Anonymous]

I've had my iphone 4s just under a year and all of a sudden the lock screen has stopped working. It's unresponsive when I press it, won't lock or unlock and occassionally the phone locks/ acts like the lock button has been pressed spontaneously. Is this something that O2 can deal with or should it be brought up with Apple? 
Any thanks greatly appreciated.

[adamtemp64]

just book a genius appointment at your nearest apple store if faulty you will walk out with a replacement phone in about 10 mins

[Anonymous]

Do you know if there's any charge applied by Apple or is it a straight forward exchange? 

[adamtemp64 · Accepted solution]

in warranty no charge out of warranty then costs all info on the apple website.

all info here http://support.apple.com/kb/index?page=servicefaq&geo=United_Kingdom&product=iphone
book appointment http://www.apple.com/uk/retail/geniusbar/

[Anonymous]

Thank you very much for all the info. I was digging but I certainly would never have found that page. 
It's still under Apple warranty so they should be able to just replace it and I can get that done on Wednesday.
Thanks again for all your help.

[adamtemp64]

no problem if you get it sorted please update the thread.