Able to downgrade back to 3.1.3 with 3GS new bootrom?
Iím currently jailbroken (spirit) on 3.1.3, 3GS, new bootrom and about to update to 4.0.1 and re-jailbreak (jailbreakme).
However, I have a feeling in the back of my mind that even though I have my blobs on file for 3.1.3, you canít downgrade with the new bootrom 3GSí. Is this my mind thatís just made this up (something to do with the baseband possibly)? I simply want to make sure Iím able to go back to 3.1.3 if things turn bad on 4.0.1.