How to Downgrade from iOS 5 to iOS 4.3.3 on iPod Touch, iPhone, and iPad
Hey everyone at iPhoneate, in this tutorial I'll explain how to downgrade if you're not happy with iOS 5 or want to go back to an untethered jailbreak. It's very important to follow both the video tutorial and the written instructions, as there are some things I didn't explain in the video. This isn't for jailbroken iPhones that rely on a Gevey or UltrasnOw. Sorry about the video quality; I didn't have time to upload it in HD.
Instructions:
Okay friends, just follow the video and the instructions written here.
1-You must have saved your SHSH Blobs in Cydia BEFORE UPDATING TO IOS 5 (Note: this is necessary if you want to downgrade; if you didn't do this, you won't be able to downgrade)
2- Download iOS 4.3.3 to your desktop. For this, I will leave you the ipswdownloader application for Mac and for Windows.
ipswdownloader for Mac
ipswdownloader for Windows
3- To put your device into DFU mode, press and hold the power button for three seconds. After three seconds, without releasing the power button, press and hold the home and power buttons for ten seconds. After ten seconds, release the power button without releasing the home button. Your device's screen should turn completely black. Now you can open iTunes to see if it has recognized your device in DFU mode.
4- Close iTunes.
5- Now you're going to modify the Hosts file. On Windows, the path is c:\windows\system32\drivers\etc\ and you'll find the file named hosts. For Mac users, simply open Finder and in the menu bar go to the Go option, then Go to Folder, and in the window that appears, type /etc. You'll find the hosts file in that folder.
5- Once you have found the hosts file, drag it to your desktop twice. Your PC or Mac may ask if you want to replace the file or keep both; select the option to keep both on the desktop. Once you have both files on the desktop, one called hosts and the other called hosts 2 without extensions.
NOTE: Of the two files that remained on your desktop , save the Hosts file since it is the original and rename it to hosts 3. Then we will edit the hosts 2 file. Open it with a text editor and look for the following.
- # 74.208.10.249 gs.apple.com
That's the legend that appears on my Mac; perhaps the numbers will appear slightly different on your PC or Mac. Once you're there, simply delete the number sign (#) before the 7, so it looks like this: 74.208.10.249 gs.apple.com . After deleting the # symbol, place the hosts 2 file in the same /etc folder. There will be two files there, one called hosts and another called hosts 2. Delete the file called hosts, and then rename the hosts 2 file to hosts so that there is only one file called hosts.
NOTE: If the previous process doesn't work for you, you can try deleting # 74.208.10.249 gs.apple.com and replaces fraud with the following 74.208.105.171 gs.apple.com I tried the second method and it didn't work for me. The process I explain in the video worked for me. It's optional, but I would recommend trying it the way I explain in the video tutorial.
6- Now open iTunes and on Windows press the Shift key and click on Restore, on Mac press the Alt key and click on Restore. Then in the window that appears, choose the iOS 4.3.3 that you downloaded earlier and wait for the process to finish. Well, those are the steps to follow
NOTE: If you don't want to have problems with future updates in case you want to revert to iOS 5.0, then you'll have to edit the hosts file again.
To do this, simply go back to the same path in Windows.
- c:\windows\system32\drivers\etc\
On a Mac, you already know how to do it: open Finder, and in the menu bar, click Go, then Go to Folder, type /etc, click Open, and then find the hosts file. Place the file you saved on your desktop as hosts 3 there. Once you have both the hosts and hosts 3 files, delete the hosts file and then rename the hosts 3 file to hosts so that you only have the hosts file as before.
Well friends, I hope this helps. If not, you won't lose anything; you'll just have to restore to iOS 5 again.
Important: This is not for illegal iPhones, which rely on a Gevey SIM or Ultrasnow to be unlocked.
