Question can i update my iphone 3g to 4.0 right now? Or is it impossilbe since the newest firmware is 4.1. My iphone has never been jailbroken so no shsh blobs. At this moment my 3g is on 3.1.3 but it is on a endless boot logo loop so I can't even get to the freaking homescreen so i have to restore. I am guessing I can't just restore to 3.1.3 right?