How to downgrade the iOS12 developer beta version

1. Downgrading is risky. Remember to back up before downgrading! If you do not back up your data before upgrading the iOS12 system, text messages and other information will be lost during the downgrade process due to the large span of the system.

2. First, you need to download a synchronization assistant from the official website of the synchronization assistant and install it on your computer.

3. Open the synchronization assistant, connect the phone to the computer with a data cable, and click on the upper menu to enter the root and jailbreak process. After entering, the system will automatically detect the firmware and provide downloadable firmware. Click on the 11.4 version of the firmware to download. .

4. Open Itunes, click the device logo to enter the device summary. Click Backup Now to back up your iOS12 data to prevent data loss after downgrading!

5. After the firmware is downloaded, select shift to update and select the firmware you just downloaded! Generally, other data will not be lost, except text messages!

6. Next, Itunes will automatically install the firmware, just wait patiently!

Note: Do not disconnect the mobile phone data cable and shut down the computer during the upgrade process, otherwise the upgrade will fail or data will be lost!