iPhone 4S Won't Past Apple Logo

[Whut]

I've got iPhone 4S from a friend and when I try to turn on phone it shows only apple logo and then phone goes off and thats it. It happens every time so I can't turn it on. I tried to restore it using iTunes but it's also not working. If anyone have any idea whats going on with my phone and how to fix it please reply.

 

[XT550]

Did you try DFU restore?
And what did your friend have to say about it?

 

[Whut]

I doesn't have anything to say, he don't know what he did. Yes, I tried to restore it in DFU mode but all I get is Restore Error (50).

 

[XT550]

There might be a lack of back up ability on the device. Close iTunes and try this:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool false

Reopen iTunes and try again.

 

[ideal.dreams]

There might be a lack of back up ability on the device. Close iTunes and try this:
defaults write com.apple.iTunes DeviceBackupsDisabled -bool false

Reopen iTunes and try again.

It's clear from the screenshot the OP provided that he's running Windows and not Mac OS X

 

[XT550]

Yeah, missed that one...

 

[iPad Retina]

Find my iPhone on?