Restore problems, 3rd party apps too

[ChrisN]

Well one of my friends wanted the 3rd party apps on their phone so i downloaded the app, but i was using my computer and it said connect to itunes , i did but it said to restore it and then after it was done it it said it could not restore it for a reason. So basically can i fix it? and can i restore it becaues it was expensive and i dont wanna be responsible!
if anyone knows please help!

 

[Tweak3D]

all you have to do is hold the home button and the sleep button. continue to hold them and it will forcefully shut off the iphone and reboot it. keep holding them until you see a yellow triangle and the iphone asks you to connect it to a computer to resotre. should be all you have to do.