jeudi 25 février 2010

Downgrade iPhone firmware 3.1.3 to 3.1.2

Hello, ... excuse my english
this is method to downgrade iPhone 3GS fw 3.1.3 to 3.1.2 for those who dont have SHSH saved in saurik server, just follow:
1- download files:
3GS 05.11.07: http://www.megaupload.com/?d=PNGIDWOH work with my 3GS bb:05.11.07, 2511 downloads and no comments ???!
2- put your iphone in recovery mode.
3- restore with iTunes, don't worry about apple verify SHSH.
4- ding your iPhone start with fw 3.1.2 .... magic
5- Jailbreak with blackra1n or redsn0w, if Blackra1n don't work try redsn0w to jailbreak and blacksn0w from cydia to unlock.
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Update 3GS 05.11.07 to 3.1.3:

1- download and restore with this File
2- Add this source in cydia : cydia.pushfix.info/
3- install blacksn0w RC2 final from pushfix source to unlock.
thats all.
work with my 3GS 05.11.07.
-:::-
3GS 05.12.01 : for downgrade the Baseband ther is one way, but i cant realize it in this instant, i give you the way and for you to try, who know maybe we find a solution:
1- Download this files: MDM_Custom_IPSW or Jailbreak with Spirit JBBBUpdater.rar
2- Unrar files in your pc then copy/send them by bluetooth or explorer, and put them in tmp or User directory in your iphone.
3- install Mobile terminal and if you need ifile with cydia.
4- run mobile terminal and type :
- login
- root
- alpine
- cd /(folder where you put the files)
- chmod 755 BBUpdaterExtreme (respect case)
- launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist (run it each reboot)
- ./BBUpdaterExtreme update -f ICE2_05.11.07.fls -e ICE2_05.11.07.eep
- dont make chage in eep file its the same with one in 05.12.01, you can modify carfully the fls file and gently with ultraedit or other tools.

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finally just say thanks
This is a hard work, stay cool with me guys and think different
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