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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 4 / iPhone 4S


iPhone 4 / iPhone 4S iPhone 4 / 4S

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Old 04-28-2011, 17:59   #1 (permalink)
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how can i downgrade a 3gs 4.32 to 4.21 pls


hello,

i flashed an iphone which was faulty on 4.32 using snowbreeze and while preserving baseband and keeping modemn version 5.15 etc.. if the baseband was 6.15, i would have unlock it , but i cant;.
so how can i downgrade to 4.21 inorder to change baseband and unlock the phone pls.

itune is signiing only firmware 4.32 and is not letting me to downgarde.

thksa=
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Old 04-28-2011, 18:00   #2 (permalink)
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Quote:
Originally Posted by ashvin View Post
hello,

i flashed an iphone which was faulty on 4.32 using snowbreeze and while preserving baseband and keeping modemn version 5.15 etc.. if the baseband was 6.15, i would have unlock it , but i cant;.
so how can i downgrade to 4.21 inorder to change baseband and unlock the phone pls.

itune is signiing only firmware 4.32 and is not letting me to downgarde.

thksa=

Successfull Downgrade & unlock 4.3.1-4.1
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Old 04-28-2011, 18:53   #3 (permalink)
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Quote:
Originally Posted by ashvin View Post
hello,

i flashed an iphone which was faulty on 4.32 using snowbreeze and while preserving baseband and keeping modemn version 5.15 etc.. if the baseband was 6.15, i would have unlock it , but i cant;.
so how can i downgrade to 4.21 inorder to change baseband and unlock the phone pls.

itune is signiing only firmware 4.32 and is not letting me to downgarde.

thksa=
Mate there is no point of downgrading...Just use my guide step by step...but skip adding repo ''djayb.com" and just search and add ultrasn0w 1.2.2 in cydia...
Guide is here: http://forum.gsmhosting.com/vbb/7215437-post10.html
Good luck
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Old 04-29-2011, 00:21   #4 (permalink)
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Quote:
Originally Posted by Thorenzz View Post
Mate there is no point of downgrading...Just use my guide step by step...but skip adding repo ''djayb.com" and just search and add ultrasn0w 1.2.2 in cydia...
Guide is here: http://forum.gsmhosting.com/vbb/7215437-post10.html
Good luck
All Firmwares Downgrade Guides !
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Old 04-29-2011, 02:17   #5 (permalink)
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Originally Posted by riajul1988 View Post

You cannot downgrade to 4.1 anymore. It is impossible without sshs blobs. Do what thorenzz has said (above). This is the ONLY way for you
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Old 04-29-2011, 03:59   #6 (permalink)
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You can refer to this liuk: Downgrade iOS 4.3.2 to 4.3.1, 4.3, 4.2.1 on iPhone 4/3GS, iPad 2, iPod Touch Guide.
Hey, hope it is helpful for you!
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Old 04-29-2011, 06:03   #7 (permalink)
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thks to all. it works. method used by thorenzz
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