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+----- Thread: [TuT] How to downgrade apple's software on a device properly (/showthread.php?tid=1065815)
[TuT] How to downgrade apple's software on a device properly - Core i7 - Feb 16, 2011
*This Tutorial is ideal for if you want to jailbreak a device and need certain software and need to downgrade!*
Step 1. You're going to have to download the firmware you want to downgrade to. Visit http://www.felixbruns.de/iPod/firmware/ and click the firmware that applies to you.
Step 2. Once your firmware has downloaded, plug up your iDevice to your computer and open iTunes if it doesn't open automatically.
Step 3. Next, you need to put your device in DFU mode. This is done by holding both the home and power button simultaneously. Hold both for 10 seconds, at 10 let go of the power button but still continue to hold the home button until itunes detects your iDevice in recovery mode.
Step 4. Now, click start, computer, go to your C drive (windows 7 / Xp/ Vista) , Windows, System 32, drivers, etc.
Step 5. Now open the hosts file with notepad. Copy everything in this file and close it.Open another notepad and paste everything. At the bottom of the text paste this without quotes "74.208.105.171 gs.apple.com" . Now go to file, save as, name it hosts,save as all files, and replace the one in the etc folder.
Step 6. The hard part is over, now all you need to do is go back to iTunes, hover over restore. Hold shift down while you click restore and it should prompt you to browse for your firmware. Select the downgraded firmware you downloaded and click open.
Step 7. When the process is done YOU WILL 99% OF THE TIME GET AN ERROR. This is normal however.
Step 8. Now your phone should be stuck at the plug into iTunes screen. DO NOT press RESTORE again in iTunes. Simply minimize iTunes.
Step 9. Now it's time to open up recboot. Open it up and choose the option "Kick out of recovery mode"
Step 10. GREAT! You should be good to go. Enjoy your downgraded software.
What's Needed
Spoiler (Click to View)
Video Tutorial
Spoiler (Click to View)
Credit to (Vino)
* - Frankie - Feb 16, 2011
Thanks I will try this later.
* - Core i7 - Feb 16, 2011
No problem, glad i could help
* - Baws - Feb 17, 2011
Wow this is nice, thanks for the share :)
* - Core i7 - Feb 17, 2011
(Feb 17, 2011 07:01 PM)Bullet Proof Wrote: Wow this is nice, thanks for the share :)
no problem, glad i could help you
* - Zry0Pwn - Mar 24, 2011
imma try this out because i keep getting error on JB'ing 4.3
Didn't work on downgrading 4.3 to 4.2.1 Please Help.
* - robife - Sep 12, 2011
This was really nice and good explaned tutorial, I was looking for this, I upgrade my iphone to 4.3.5
I didnt find good tuto like this. Now, I will try to downgrade.
* - D3xus - Sep 12, 2011
You need SHSH blobs for this to happen, but you usually have them if you were jailbroken before.