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[疑難求助] 怎樣可以downgrade from 4.0.2 to 4.0.1?

我有部 Iphone 3GS, 怎樣可以downgrade from 4.0.2 to 4.0.1? 因Jailbreak not support. 已有備份shsh.

Thanks
i need info too
C:/Windows/System32/Drivers/etc/hosts
呢度有冇加 74.208.105.171 gs.apple.com ?
咁樣先可以downgrade返.
本帖最後由 goodweather 於 2010-8-12 09:05 AM 編輯

已有備份shsh就用 TinyUmbrella
http://thefirmwareumbrella.blogspot.com/

For Windows Users
http://cache.saurik.com/umbrella/umbrella-4.01.08.exe

Mac Users
http://cache.saurik.com/umbrella/Umbrella-4.01.08.dmg

無需改 Host file..
don't understand wor... how to use it.....???

Thanks
can try to use iTunes to restore back, maybe can help =)
i still dont understand what you say
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