Tutorials

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools

2019-03-27 15925 Posted by 3uTools

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Important Update on March 27th: SEP is not compatible, you would fail to activate your device after downgrading. We will remove this feature in our next version.


V2.33 3uTools is finally released with the long-awaited downgrading feature, downgrade 64-bit iDevices with SHSH2. This tutorial will guide you how to downgrade step by step.

 

Important Notes

  • This feature is only available on iOS 11-12.1.2 iDevices. (You can not restore to iOS 12.1.1 beta 3 with SHSH blobs.)

  • The downgrading operation will not save any data, please back up your device in advance.

  • There are risks to downgrade with SHSH2, so this downgrading feature is recommended for experienced users. Once you fail or meet errors while downgrading, you would have to upgrade to the latest iOS version.

  • Face ID may not work for some iDevices restorng to iOS12.0-12.1. If your Face ID does not work, please try to restore again or upgrade iOS 12.1-12.1.2.

  • Some iDevice would meet "Unable to activate" error after downgrading.

  • Similarly, you can also restore to unsigned iOS version if you have saved SHSH files before. This tutorial also works on A8 devices restoring to iOS 11.3-12.1.2, A7 devices restoring to iOS 10.2-12.1.2.


Or you can check the video tutorial first:



Compatible iDevices

 

iPhone

  • iPhone X

  • iPhone 8/ 8 Plus

  • iPhone 7/7 Plus

  • iPhone 6s/6s Plus

  • iPhone SE

 

iPad

  • iPad 12.9-inch iPad pro 2nd generation

  • iPad 12.9-inch iPad pro 1st generation

  • 10.5-inch iPad pro

  • 9.7-inch iPad Pro

  • iPad 6th generation

  • iPad 5th generation

  • iPad Air 2

 

iPod

  • iPod touch 6th generation

 

Pre-Requisites:

1. Download the SHSH2 (of the iOS version you want to downgrade) you saved before on 3uTools or another tool.

2. Download NonceReboot12XX ipa file.

3. Download the iOS firmware you want to downgrade on http://www.3u.com/firmwares

4. Delete any software update on your iDevice.

 

If you saved SHSH2 file saved on 3uTools server: 

If you never uninstall 3uTools, you could find the SHSH2 files in 3uTools cache folder.


Right-click 3uTools icon → click “Open file location”, and open “cache” folder, scroll down to find the right SHSH2 files of iOS version you want to downgrade.


Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


If you saved SHSH2 file saved on Tsssaver server:

Please go to its website to download the SHSH2 of iOS version you want to downgrade. And open noapnonce folder to get the SHSH2 file. 


Set generator nonce with NonceReboot12XX ipa 


Step 1 Install ipa with latest version of Cydia Impactor. Go to Settings > General > Device Management, and open the just installed profile, and trust the developer.


Step 2 Enable Airplane mode on your iDevice, close Siri and reboot your iDevice.

 

Step 3 Open shshe2 file using any text viewer (eg. notepad)

 

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 4 Search for <key>generator</key> and look beside it for actual key (eg. <string>0XXXXXXYYYYYYY</string>.

 

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 5 Tap NonceReboot12XX on your device, and enter the above key code, and tap return to start set generator.


Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uToolsRestore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 6 Rename the SHSH2 file to .shsh from .plist.

 

Downgrade with SHSH2 using 3uTools


Step 1 Connect your iDevice to 3uTools and go to Flash & JB Advanced, and click Download 64-bit iDevice.

 

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 2 Read the popup carefully and click Select IPSW → Select SHSH, and double check the generator nonce you just entered.

 

Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 3 Select SHSH2 file, double check the generator nonce you just entered and click "Yes" to start downgrading.


Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Step 4 Confirm the connection between iDevice and PC, patiently wait for 20 to 40 minutes. Your iDevice will be restored to unsigned iOS 12.0 - 12.1.2 then.


Restore 64-bit iDevice to iOS 12.0-12.1.2 with SHSH2 Using 3uTools


Thanks for visiting. For more latest updates or supports, follow us on Facebook or Twitter.

Related Articles

“iDevice is Connected, But Can’t be Recognized” While Using 3uTools? How to Solve the Frequent Operational Failure of 3uTools on Computer? 3uTools Frequently Prompts “Connection Timeout”? How to Download and Set Ringtone Using 3uTools? How to Back up and Restore in 3utools? Failed to Export Photos Using 3uTools? Why It’s Failed to Delete Photos on iPhone Using 3uTools? How to Restore a Disabled iPhone Using 3uTools?