Corrupted 4.3.5 on iPhone 4

[Ledge]

First off, Thank you in advance and also thanks to all the veterans and people currently serving!!!

OK, here my butch job:

I procured a iPhone 4 32gb running 4.3.5 tethered jailbreak, with 01.59.00 BB.
Without double checking the saved shsh's, I tried downgrading to 4.3.3.
Now the phone is basically bricked in dfu mode.
It usually gets an error 11 when I try to upgrade it to ios 5.
it also gets 1600 and 2005 errors.
tiny umbrella says its currently on 4.3.5 with ios 5 saved.
Ive tried most everything. itunes install, uninstall.
I'm thinking it needs 4.3.5 reinstalled.
I'm on windows 7 Ultimate 64bit. Also can use XP Pro.

How can I reinstall 4.3.5 while preserving the BB?

[[email protected]]

Since apple is not signing 4.3.5 anymore, and it's not showing up in your tiny umbrella saved shsh, it may be time to do custom firmware 5.0 tethered jailbreak. The version you are on, if not saved, does not mean you can restore to it if the phone is in this mode. (Ifaith would have worked if done earlier), but now, I don't think you can. Make sure to check the option to retrieve shsh blobs from cydia too in the advanced tab.

[Ledge]

Sorry I wasn't more clear. I've been trying that already with Snowbreeze.
I have retrieve shsh checked.
Is there a way to try to upgrade to a not jailbroken ios 5 while preserving baseband?
I wonder if its time to try a Mac.

[[email protected]]

Tiny umbrella should be able to help you do this.... But wait to hear from a moderator to see if it works on current iOS versions. That is traditionally the way to do it though- with t.u. TSS server running.