So I just got out of a really bad white screen of death, and a stuck DFU black screen with all sorts of errors. Basically I had to take my iPhone 3GS apart from the motherboard to the battery for a hard reset, and invent a weird way to get iRecovery to work (had to use "Just boot" in redsnow and right when the white screen came out for only 2 second, use the command iRecovery -s to get out of it into another black screen). Yes, I know about pwned DFU mode being different from DFU mode, I can manually get into DFU mode with my eyes closed by now, and used all possible tools to get out, but NOTHING worked in my particular case. Basically the phone came with 5.1.1 installed, so the first thing I did was save the blobs for it with redsnow. Redsnow said it saved the blobs locally and to cydia successfully, but after hitting Query, only a blank screen would show up: No problem, I stitched the local blobs to a 5.1.1 firmware and restored successfully with it!!! The first time at least... when I tried doing it again, all hell broke loose, and it took me days to get out of the white screen of death and many other issues. Later, for whatever reason, using many different tools, iFaith somehow submittef 5.1.1 blobs and 4.1 blobs to cydia, and was able to install 4.1 ALLELUYAH... (4.1 is still being signed though Code: http://theiphonewiki.com/wiki/SHSH ) And now, Redsnow shows me these blobs: However, Tinyumbrella shows me that my 5.1.1 blobs (I think) are invalid: And iFaith says that I only have blobs for 4.1. I know about editing the host file in windows, creating custom IPSW's, stitching blobs, and restoring, but I think all the issues came off a successful restore with a phone with serial number 83944XXXXXX when I did that restore, because even if the cut off time for fixed BR was week 45 of 2009, Redsnow said that those in week 44 like mine were mixed results. So my question is; Can I use those 5.1.1 blobs from cydia and restore from 4.1 (currently) to 5.1.1, or will it get me into a blank screen of death again? Are my 5.1.1 corrupted?