Sorry if this has already been asked, I searched with no specific answer. I have a jailbroken 4s operating on 5.0.1, I want to restore it to 5.0.1 and remove all my cydia apps. I have gone through the steps for restoring that I have found, I downloaded ipsw file, and put my phone in DFU mode. I have tried to restore it multiple times and I keep getting an error saying my phone can't be restored, and there is a code 1600. If someone can help me out I would greatly appreciate it. Thanks in advance.