Chipped/ cracked iPhone 4s corner repair prices?

Its not the screen or anything just at the side at the corner its a little chipped. Please tell me what it costs in euro please, and maybe you can tell how much it would cost in Ireland please?

IPhone Color keyboard backgrounds not showing up?

Title pretty much says it all. I updated from IOS 5.0.1 to IOS 6.1 and when I tried to put the background on my keyboard it didn't show up after respring. I've tried everything I could think of from changing backgrounds to reinstalling it, but nothing works. I didn't have this problem till I updated so if someone could help it would be appreciated.

How to fix an iPhone usb cable?

When I was charging my iPhone, with the usb cable, I saw it burn and my computer said that it didn't recognized my iPhone. The wires are showing because I kept on pulling on the cable to get it off my phone. What should I do? Should I just get a new one?

How to get the sound back on my iPhone 3G S?

The sound stopped working, I can't reset it because I don't want to loose all of my pictures etc, is there anything I can do to get the sound back? I've tried rebooting it but still nothing, tried closing all the apps, tried switching it off and on and still nothing, is there anything I can do?