I asked muscle nerd on Twitter if it was possible to backup my 4.0 blobs well not on 4.0 since I have the new bootrom 3GS and can't jailbreak it yet I'm still on 3.1.3. He responded with a tweet that said with the firmware umbrella you don't have to be on 4.0 to back em up however I tried it and it just backed up my 3.1.3. Blobs again. Anyway know how to do it? I just wanna be ready for 4.0 when the new spirit comes out. But I don't want to goto 4.0 now cause I need to be jailbroken.