So back when I had 3.1.2, I kept that and had the tethered jailbreak. Spirit came out, and it was untethered, so I updated. But before doing so, I grabbed my SHSH blobs as told so that I can restore if needed. Now I upgraded to 4.0, and I found out that to get this jailbreak to work I need to be on 3.1.2. So, since I got the blobs before I upgraded and did spirit, I should have 3.1.2 blobs, right? Well apparently I have 3.1.3 blobs because that is what umbrella says when I put the location of my blobs for the downgrade. So is there anyway to go from 4.0 to 3.1.2 or from 3.1.3 to 3.1.2 without the blobs?