OK I hope I can get help!! I am trying to upgrade my jail broken iPhone 4 to a newer version of iOS. I am factory unlocked so preserving the baseband is not an issue. I can't update via iTunes and I don't know why. I tried to factory reset my phone using the in phone reset and messed up my jailbreak so I need to restore or update. I do not want to update to 6.1.3 cause there isn't a jb for it. Is there a way to update using redsn0w and if there is can somebody provide me with a tut or a link. I do not have any shah blobs