Downloads:
Jailbreak Support
iBrickr 0.91
*note* this guide is for iTunes-activated iPhones
MAKE SURE YOU HAVE ITUNES VERSION 7.4.2 TO DO THIS
If you currently run 1.1.1 firmware you can completely skip step 1
1: Downgrading from 1.1.2 firmware to 1.1.1:
download the firmware 1.1.1 from this link and save it to your desktop.
link for iPod Touch users:
http://www.megaupload.com/?d=K909GYMS
link for iPhone users:
http://modmyifone.com/forums/downloa...o=file&id=1355
to apply the firmware, connect your iphone/ipod to itunes. once it shows up, hold the shift key down while you click "update". dont let go of shift untill a box comes up that lets you find a firmware in your computer. locate where you downloaded it to and select that. your iphone/ipod will now go through the updating process and once finished, you will get an error saying the update was unsucessful for an unknown reason, thats normal just ignore it and look at your iphone. it wants you to connect to itunes but ignore that too. to get it out of this stuck mode leave your iphone connected and open iBrickr
(
http://ibrickr.com/downloads/ibrickr_v0.91.zip)
it will say your iphone is in recovery mode and ask you if you want to boot it click that and your iphone screen will go red, this is normal just wait. eventually your phone will unlock and be just normal. you have just downgraded your iphone!!!
2: Reactivation:
to reactivate your phone, you need to jailbreak it first. using safari on your phone, connect to a WIFI connection and visit this website "www.jailbreakme.com" tap "install appsnap" and it will install and your phone is now jailbroken. when you look at your springboard you will have an icon called installer, tap that and go straight to install and find the category called "tweaks 1.1.1" and tap on "OkToPrep" install it by tapping install on the top right and you will get a message saying you can now update to 1.1.2.
connect to itunes and click check for updates normally and let it update to 1.1.2 as you would normally and when your done your phone will be 1.1.2 and activated again.
3: Jailbreaking 1.1.2:
to complete the jailbreak on 1.1.2 download the jailbreak pack:
http://conceitedsoftware.com/iphone/1.1.2-jailbreak.zip
download that and it unzip all the files onto your desktop. press control+alt+delete and click the processes tab to view all processes. close all processes that have to do with itunes. now, open the one called "jailbreak.jar" and it will have a button to click that says "Jailbreak!" click that and it will do the work for you. this can take a few minutes, so be patient. at the end it will automatically restart your phone and then your done, you now have a fully jailbroken 1.1.2 iphone.
Good Luck!
Thanks to Dev Team!
-brandoN^-