Problem with iPhone after reset?

I jailbroke my iPhone 5S but after sometime I wanted to un-jailbreak it, so I went into my phone settings and from there I did a complete reset (Erase all content and settings). After that my phone was now booting up. It showed a circle which kept on revolving, so I did a hard rest (By holding the power and home button together). After this the phone showed the apple logo and then it showed an image saying connect to iTunes. When I connected it to iTunes it was detected in recovery mode and said that I have to restore it before using it, so I did the restore but I was shown an error, namely 3004. Now I can't do anything with my phone every time I try to restore it, it gives me the same ever. Now how can I get my phone repaired by apple?

Try another computer or uninstall and re-install itunes and try again.

If it is still acting up you can ask Apple for help. It may have to be replaced but if the jailbreak is still on due to the restore not going through you're out of luck.

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