From ModMyiFone - Wiki
Screenshots etc coming soon, but for now, here's the basics:
KMAC over at hackint0sh has found a way to downgrade from 1.1.1 to 1.0.2. Here's the skinny:
- Start iTunes and plug in your iPhone which is running the 1.1.1 firmware.
- Hold down the Sleep and Home button for 10 seconds. Allow the phone to power off, but keep holding down the buttons. After 10 seconds, let go of the Sleep button, but keep the Home button pressed until iTunes sees your iPhone. The screen on your iPhone should be displaying nothing right now.
- iTunes will ask you if you want to restorea. Hold down Option or Alt, I forget which (Shift if you are in Windows), and click restore. When iTunes asks you what file you would like to restore from, navigate to your 1.0.2 folder. You may have to rename that file to .zip and uncompress it. It will begin to restore.
- When it completes, you will get an error. The iPhone will display the yellow triangle on the screen. Leave iTunes open, and run AppTapp. This may give you an error, but you should see the "Activate iPhone" screen after.
- Run AppTapp again. If the iPhone isn't being recognized, restart the computer and then run AppTapp for the second time.
- Congrats! You now have 1.0.2 again! iNdependence and all other modding apps will now work.
This has been verified with iTunes 7.4.3.1.
hackint0sh
Video Tutorial (PC)
http://www.youtube.com/watch?v=FE85O8zdTTs by amnesia
==More Info==
How do I Restore my iPhone to factory state (virginizing)(Mac/Win 1.0.2 only) (Virgin phone)?
First an explanation. Virginizing your phone means two things. First, flashing the baseband (modem) to a virgin state. Most unlocking procedures modify the baseband by writing code to it. The reason we flash the baseband is that If you only do a restore via itunes (to the same version of the firmware), your baseband software is not updated. If you do not flash the baseband you may have problems with these instructions or in the future. Second, a complete restore to the current firmware via Itunes. This procedure will relock your phone and ensure you have clean firmware as if the phone just came out of the box.
To prepare, if you haven't already, Download ibrickr , (if you have iTunes 7.4.x you will need to download this file and place it in the ibrickr folder for it to work) ICE03.14.08_G.fls, ICE03.14.08_G.eep, Terminal & Necessary Files. It is suggested to keep extract these files into your ibrickr folder.
1. Open Ibrickr and choose Files
2. In the Ibrickr File manager view on the right side of the screen click the on the picture of the iPhone where it says bin/ it will look like a hyperlink
3. click the upload files button. select ICE03.14.08_G.eep & ICE03.14.08_G.fls click open and wait for them to upload
4. click back go to file and upload the files from the iphone.unlock.zip to /usr/bin
5. Once the files have been uploaded go back to the main screen of Ibrickr and choose Applications > install from PXL file and choose MobileTerminal-VT100-svn161.pxl
6. From your iPhone tap the Terminal icon on your springboard and type launchctl unload -w /System/Library/LaunchDaemons/com.apple.CommCenter.plist
7. From your iPhone tap the Terminal icon on your springboard and type cd /usr/bin then hit enter, then type chmod +x bbupdater and hit enter then type ./bbupdater -f *.fls -e *.eep and hit enter
8. Restore via Itunes by holding down the power and home keys on your iPhone for up to 45 seconds at which time you’ll see a yellow triangle and a message to connect to Itunes. Make sure your phone is connected to the computer and launch Itunes. Follow the options to restore.
Note 1: If you are stuck getting into restore mode, try several times, and try with the phone in the dock or connected to the computer.
Note 2: Your phone needs to have connected to iTunes at least one time before you do anything, then just cancel out of the "AT&T activation screen or close Itunes)
9. Quick factory activation and YouTube Activation for freshly restored phones:
Windows: Download this file, and run "(CLICK HERE) activate.bat"
Mac: Download and run apptapp installer. Then download this file and decompress the archive in your home folder. Then double click the Install youtube.term file
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