I have SHSHs for my iphone. But i can't downgrade it.

[ninjapug]

I have a spare iphone 3GS which my friend gave me and it has never been jailbroken before.

I decided to save Blobs using Tinyumbrella and In the log file it shows
09/21/2011 15:13:06.578 iPhone3GS 4.1 (8B117) SHSH SUCCESSFULLY saved!

I know i can't use Cydia to restore as it has never been jailbroken. Therefore i start TSS server and ensured that the host file contains 127.0.0.1 gs.apple.com

#127.0.0.1 localhost
#74.208.10.249 gs.apple.com
127.0.0.1 gs.apple.com

I opened itunes, shift click restore and browse to iPhone2,1_4.1_8B117_Restore.ipsw. It returned error 20.
When i tried restoring 4.3.5 it works. To prove that everything i have done is correct, i switched off my wireless internet beforehand.

What could be wrong? Please help me.

 

[kimovski]

simply on host files add:

74.208.105.171 gs.apple.com

it will restore then dont worry if comes up with error. Simply go to tinyumbrella page and download recovery fix, make sure put the phone on dfu mode before it runs.

 

[macingman]

simply on host files add:

74.208.105.171 gs.apple.com

restore to desired firmware

then click "Exit recovery" in tinyumbrella it's self.