Downgrade, Activate, Jailbreak 1.1.3 in a Nutshell!
I upgraded an OTB 1.1.2 to 1.1.3 using Nate’s method. I found it to be a pretty not-so-complicated upgrade. Then I tried SummerBoard which made me think twice about using DevTeam’s jailbreak instead. SummerBoard posed so many issues with Nate’s 1.1.3 Jailbreak. So, following are the steps taken to downgrade a 1.1.3 Jailbroken (Nate) iPhone to 1.1.1 followed by an upgrade to 1.1.2 and then finally upgrading to 1.1.3 using DevTeam’s Jailbreak.
Files needed : 1.1.1, 1.1.2 firmware files.
Step 1 : Sync your iPhone to iTunes. Hold the home and power buttons till you see ‘Connect to iTunes Screen’ on your iPhone.
Step 2 : Click on ‘Ok’ on the prompt and hold the Option key (Mac)/Shift key (Windows) and click on Restore. Locate the 1.1.1 firmware file(ipsw) you downloaded.
Step 3 : You will see a 1015 error at the end. Fire iNdependence / iBrickr which would boot the iPhone.
Step 4 : Follow this simple guide (my fav) and activate/jailbreak your 1.1.1 iPhone. At this stage, I tried my Cingular SIM which gave no signal. I felt that it is a 1.1.3 Downgrade and no signal issue. Don’t panic, proceed to the next step. Trust me!!
Step 5 : Now follow this simple guide for 1.1.2 iPhone activation/jailbreak.
Step 6 : You are all set for a sit-back-and-relax-guide for 1.1.3 Dev Team’s jailbreak.
Important : Go to Settings -> General -> Auto-Lock -> Never. Trust me this will save lot of tension in this 30 minute ordeal!! Make sure you have access to a high speed WiFi access-point.
Step 7 : Open installer.app and launch ‘1.1.3 Jailbreak DevTeam’ . Watch your favorite TV show or do your homework while this huge file is downloaded and installed to present you with a Jailbroken 1.1.3.
Post install instructions :
You will have to delete 300 MB space occupied by the downloaded firmware file by launching ‘1.1.3 Soft Upgrade cleaner’ found in installer.app -> Recent Packages.
Google Maps will still refuse to pinpoint your exact location. Locate Me/ Navizon GPS should safely assist Google Maps in this situation!
Summer Board works great unlike Nate’s 1.1.3 JB method.
Follow my other 1.1.3 post for other related tips 
Hi All,
The PC that I used to Sync my iPhone is now konk off. Can anyone teach me how to re-sync to another PC? thanks., thanks. thanks.
Step 7 : Open installer.app and launch
step 7, shd be
To Add http://www.modiphone.net/repo to your Installer.app sources list.
@Raju : For 1.1.3 DevTeam jailbreak, modiphone repo ain’t required. Atleast I didn’t use it!! It won’t hurt to use it though
you can add source like this:
go to INSTALLER
click on SOURCE
Click on EDIT and then ADD
http://installer.iClarified.com
REFRESH it
open ISTALLER
sroll down and look for iClarified
[…] 1) I readily downgraded it to 1.1.1 as described in my other posts. […]
awesome thank you very much I just got the 16gb 1.1.3 OTB iphone and have it jailbroke The only issues I had was when I was updating to 1.1.2 there was no option to update (only button was restore, the other could not be clicked) I managed to fix that by closing itunes and all processes assosiated with apple, then started itunes by holding shift when I clicked the icon ands held it untill a menu popped up about importing my music library. I guess this is almost like a reset button. Also, the file I used to upgrade is called OFFICIAL 1.1.3 Jailbreak DevTeam…took me a lil bit to find it…was looking for just 1.1.3 Jailbreak DevTeam