I have an iPhone 5c that worked well But it did not work network constantly to pen that is looking for , and last night I went to reset to factory settings and has failed , threw me a mistake 4013th Did he know who the problem , I put a new screen and new battery Update (03/05/2016): I have an iPhone 5c which had not worked networks , and last night I went to reboot I got stuck at half load, I threw the error 4013 , was helpful before and everything was working normally Network did not work , constantly it says that asks , I was trying to do over the item But in vain , And he put a new screen , home button and battery