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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 03-19-2011, 05:51   #1 (permalink)
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can i downngrade iphone 3gs ?


can i downgrade 4.3.0 to 4.2.1?
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Old 03-19-2011, 07:55   #2 (permalink)
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Bb

Quote:
Originally Posted by khanmobiles0003 View Post
can i downgrade 4.3.0 to 4.2.1?

Baseband? tell ur basebandddddddddd...
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Old 03-19-2011, 08:05   #3 (permalink)
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If you have saved SHSH for 4.2.1 will succeed. You can check with the umbrella.
If Baseband is 05.16.00 you can not downgrade.

Last edited by MEF1; 03-19-2011 at 08:11.
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Old 03-19-2011, 08:23   #4 (permalink)
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u can do

no problem u can do
redsn0w
1 put with redsn0w in dfu
2 restor castum 4.2.1
3 redsn0w cidia and ipad modem
4 new grinepousen
work 100%
tested
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Old 03-19-2011, 08:34   #5 (permalink)
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Quote:
Originally Posted by khanmobiles0003 View Post
can i downgrade 4.3.0 to 4.2.1?
yes you can by the redsn0w.
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Old 03-19-2011, 11:23   #6 (permalink)
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yes you can .. follow the link

http://forum.gsmhosting.com/vbb/f456...uides-1228227/
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