iPhone IP4 and downgrade from ios 7 to ios 6 (or 5) but with an error, please!!!

[Jedi82]

Hy guys, i would LOVE to downgrade my IP4 that as now ios 7 to a more performant ios 6. In the past, i saved some shsh on my computer with TUmbrella and the other via Cydia. Now i saved all the shsh on my pc but when i try to creare a customize ipsw with iFaith i receive this error with all my ios 6 shsh:



I tried with my ios 5.1.1 and all went good, i create the new and customized ipsw but i still don't try this causa i hope that will be a chance to downgrade on ios6...

Please can someone help me with my problem? How can i do? It's possibile to downgrade to ios5 and then maybe upgrade to ios 6?

UPDATE:

i tried to use the last redsn0w tool and this one is triyng to create a custome ipsw accepting my 6.1.2 shsh, maybe it's ok lke this???

 

[antnee]

Dont think its possible...

Hy guys, i would LOVE to downgrade my IP4 that as now ios 7 to a more performant ios 6. In the past, i saved some shsh on my computer with TUmbrella and the other via Cydia. Now i saved all the shsh on my pc but when i try to creare a customize ipsw with iFaith i receive this error with all my ios 6 shsh:

[url=http://s25.postimg.org/ti8iwv4xn/Cattura.jpg]Image[/url]

I tried with my ios 5.1.1 and all went good, i create the new and customized ipsw but i still don't try this causa i hope that will be a chance to downgrade on ios6...

Please can someone help me with my problem? How can i do? It's possibile to downgrade to ios5 and then maybe upgrade to ios 6?

UPDATE:

i tried to use the last redsn0w tool and this one is triyng to create a custome ipsw accepting my 6.1.2 shsh, maybe it's ok lke this???

 

[TriJetHero]

You can't downgrade to 6.1.2 without a valid aptticket

I would go to 5.1.1

Always save your shsh's manually and verify them.