Iphone 4 button not working?

I'm out of contract on my iphone 4, use only for Wi-Fi. Today suddenly the button at the bottom of the iphone will not work to take me back to the main menu. To switch between apps I have to switch off and then back on again to get back to main menu, then if for instance i go to my mail, i then have to switch off again to get back to main menu. Is this a common problem, is it easily fixed and if anyone knows, how much would it roughly cost if fixable.

Could be the provider being nasty or your own fingers are too rough
try take it to a mobile repair shop ask a silly question act clueless if it is easy fixed it will only cost a spoken thank you

  • Power button on iphone not working? On my last iphone, the power button on top stopped clicking and eventually stopped working. So i got a new one, and the same thing is happening again. Why is this happening? Can it be fixed? This is ridiculous
  • Iphone side button not working? My side button is not working (the lever thingy) now i don't know if its on silent or not. When i put my earphone in it works and sometimes out of the blue. The logo comes on the screen telling its on ringer. But apart from that my earphone jack is clean but not like mad clean. I compared mine and my muma iphone jack and hers is so dirty. And hers still works! I'm starting to panic what shall i do
  • IPhone not fully charging and home button not working? My iPhone 4 only charges to 10% and stops. After it turns off it charges back to 10% and stops so it doesn't even get passed that. How do I fix this? Also home button doesn't work I have to turn my phone off to get out of an app
  • IPhone home button not working? So I have an iPhone 4, just over a year old and the home button started to be a bit annoying 2 months ago and now it barely works. I have the touch screen one in the accessibility settings but is there a way to fix it or do I need a new phone or need it repaired or what? I'm not sure, please help!