Ok, so I decided to jailbreak my iPhone 3GS like a week after firmware 3.1.3 came out. Of course I was still in 3.1.2 and a noob on this whole jailbreaking scene. I didn't get to save my shsh blobs with cydia since I had no idea what that was all about until I finally learned and was too late. So now 3.1.3 has been jailbroken for 3GS and people can now save their SHSH. So I tried to do it with umbrella but it failed. So if I'm still in 3.1.2, does that mean I have to update to 3.1.3 and rejailbreak in order to save my SHSH blobs? Is there any other way? Thanks!