maybe it's a BB issue (just guessing now)
Try to make a No_BB IPSW with redsn0w and after that stitch your locally saved SHSH to the NO_BB ipsw creating a second custom IPSW.
try to restore that in pwn-DFU.
Hi , i get error 1600 when im using TU TSS server , and if im not then I get 3194. I have 3GS 6.0.1 , saved SHSH blobs with TU when i had 5.1.1. I putted pwned DFU mode over redsnow , stiched localy SHSH blobs(which i got from TU) with ipsw for 5.1.1 , pressed shift+ left click for restore , marked the stisched ipsw and got to the text: preparing iphone for restore and then got error 3194.
I have tried to delete apple line on hosts file and they again appear.
BTW i dont know how to flush DNS and no_bb ipsw
the TSS method doesn't work anymore.
Download the 5.1.1 IPSW
open redsn0w 09.15b3
go to Extras/even more/restore and follow instructions