As of yet you cannot however there may be a possibility of using blobs from another device. But as of right now you require the blobs of the iOS you are trying to restore.
Okay, so I just downgraded from the 5.1 to 4.4.2. At the time, I was unable to created any ssh blobs from the new version yet as the 5.1 version was not accepted by Ifaith. Do you think I will eventually be able to upgrade to an untethered version since I was unable to create the blobs?
So even though I have already downgraded, you would still recommend me using the new TinyUmbrella to back up?
**Actually, I just checked on my TinyUmbrella program and saw that I have saved blobs for AppleTV 2 5.1 (9B179B). Although, it will not allow me to save new blobs for the 4.4.2 as it says that it’s not being signed anymore.
Is this common’ that it won’t allow you to save blobs for the downgraded version?
You will need to use iFaith or redsn0w to save the SHSH blobs for the iOS you currently are running. TinyUmbrella will not capture them from the device instead of captures them from the Apple Server while they are being signed.