Downgrade_SHSH Blobs How To ?All U Need Here
 

Soon Apple Will Release A New IOS 5.1 And Some Will Update And Alot OF Asking About Downgrade Will See It Here Soon:)

http://cdn.redmondpie.com/wp-content...11/iOS-5.1.png

So I Decide To Make A Tutorial About Downgrade And Every Thing U Need

All Information About Downgrade For All I Devices Will Be Here

Starting

What Is SHSH Blobs?

SHSH Blob Is A Signature File Which Is Verified Against To Apple Server to Verify That The IPhone Is Running On Latest version . If for Some Reason, When you Are try to restore to old version, Apple will not Allow You to Restore And Will Got Error 3194 Becuase You Are Trying To Restore A Older Version of iOS.But IF U Saved SHSH blob
(which was saved by you)

[SIZE="5"]How I Can Save SHSH Blobs ?[/SIZE]

U Can Save SHSH By TinyUmbrella Or Dumb The SHSH File By Ifaith Or RedSn0w


Why I Will Need SHSH File ?

To Downgrade To Old Version That Support To JailBreak Or U Phone Is Locked
On Old BB 1.59( Iphone4) Or Work By Gevey Sim To Not Update BB


To Save My SHSH blob, Do I Need To Have A Jailbroken Device?

No U Donot Need To Have JailBroken Device

Can I Use Some One Else SHSH Blob?
Sure NO While you are saving SHSH Blob It Saves With ECID
(Exclusive Chip ID) & It Should Match When You Are Restoring

Iphone 3G Need SHSH To Downgrade ?

No U Donot Need SHSH Because Apple Not Stop Sign The Old Fimware For 3G

Can I Downgrade 3Gs To 4.1 Without SHSH ?

Yes U can Because Apple Sign 4.1&5.0.1 And Not Close 4.1 So No Need SHSH To Restore To 4.1 But Any Other Version Need SHSH File To Downgrade

How I Can Use SHSH File ?
There Is Alot Of Solution To Restore By SHSH File
First:Using TinyUmbrella The Firmware Umbrella - TinyUmbrella
How To: How to Downgrade iDevice Firmware with TinyUmbrella - YouTube
Sec:Using Ifaith iH8sn0w.com
How To :Downgrade IOS 5 To 4.3.3

Or Add This Line 74.208.105.171 gs.apple.com In U Host In
C:\WINDOWS\system32\drivers\etc and OPEN host file With notepad
Then Restore U Iphone

Iphone_Ipad_Ipod_Apple Tv All By Same Process

And Downgrade Way Is Standard Nothing Change It Same :)

IF I Forget Any Thing Please Post Here To Help The Othres To Not Make Anew Thread About Downgrade :)

Regards
B,R
Shedeed :)