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How to Downgrade iOS 5.0.1/5.0 to iOS 4.3.3 on iPad 2/iPhone 4 using TinyCFW

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Dec 18, 2011
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Upgraded to iOS 5 accidentally while enjoying an untethered jailbreak on iOS 4.3.3? Well everyone is not happy especially the iPad 2 and iPhone 4 users who have no longer access to untethered jailbreak on iOS 5. iPad 2 users are at a greater disadvantage as they don’t even have a tethered jailbreak solution for iPad 2 on iOS 5 yet. However with this little guide you can downgrade iOS 5.0.1/5.0 to iOS 4.3.3 if you had your blobs saved for your iPad 2 (GSM/CDMA) or iPhone 4 (GSM/CDMA) earlier.

After downgrading you can use JailbreakMe 3.0 to untether jailbreak your device and enjoy just like the old days. However, iPhone 4 can wait a bit more as iOS 5 untethered jailbreak is on its way for A4 based devices.

TinyCFW creates a custom firmware using TinyUmbrella so that you can downgrade to iOS 4.3.3 using iTunes. Thing that you can and cannot do with TinyCFW are as followed:

What TinyCFW Can do:

  • It will modify an existing ipsw for an ipad2 gsm/cdma or iphone4 gsm/cdma
  • It WILL modify the ipsw TO UPDATE YOUR BASEBAND TO THE LATEST!
  • It will create an ipsw that you can use with TinyUmbrella AND iTunes to restore to a version of iOS that you have SHSHs for.
  • It is primarily for iPad 2 iPhone 4.

What TinyCFW CANNOT do:

  • A jailbreak
  • An unlock
  • A tool to protect your baseband.
  • A tool that will restore your device to any firmware
  • A tool for use with iPhone 3GS, iPhone 3G, iPad, or iPhone 4S

Simply follow the steps below in order to downgrade your iPad 2 or iPhone 4 from iOS 5.0.1/5.0 to iOS 4.3.3.

Note that you require at least 2.5GB if RAM to use TinyCFW and Java installed.

Follow these steps in order to downgrade:

Step 1: Download the following files:

Step 2: Open TinyCFW and press the top button. Point to the iOS 4.3.3 ipsw downloaded in Step 1.

Step 3: Now click the second button so that TinyCFW will tell you the firmware and baseband versions.

Step 4: Click on 'Save Target IPSW' and then wait for about two minutes and you have a file called:

" Ipsw original name. bbupdate.ipsw  " (without quotes)

Step 5: Go to TinyUmbrella => Menu => Advanced options and make sure that iTunes uses Cydia servers.

Step 6: Connect your iPad 2 or iPhone 4 and put it in DFU mode.

Step 7: Point out to the custom firmware created in Step 4 in iTunes (Shift+Click Restore) in order to restore your device to iOS 4.3.3.

Once done simply browse to www.jailbreakme.com via Safari in order to untether jailbreak your device on iOS 4.3.3

Note: We are not responsible for malfunctioning of your device at any stage.

 

 

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