Jailbreaking an iPhone 3G unlocks it from iTunes and allows you to install games and applications from third-party vendors through the Cydia app store. Cydia is automatically installed as an integral part of the jailbreaking process. Removing Cydia involves restoring the iPhone 3G to official Apple firmware, which removes both the third-party Cydia app store and the iPhone's jailbreak status.
- Skill level:
- Moderately Easy
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Things you need
- iPhone 3G USB cable
Download and install the latest version of iTunes on your computer, following the installation instructions detailed on the Apple website. Launch iTunes once installation has completed by clicking its icon on the desktop.
Connect the iPhone 3G to the computer using its USB cable. iTunes will detect that an iPhone has been connected and will add it to the "Devices" list in the left column.
Click "Restore" and select "Back Up" from the pop-up dialogue box. This will create a backup of the iPhone's current settings and content, which will be restored after Cydia has been removed.
Click "Restore" in the dialogue box once the backup has completed. The iPhone 3G will be restored to its factory settings and a new version of the latest firmware will be applied. The screen will go black during the process, and the Apple logo will be displayed.
Select the iPhone 3G's backup file from the "Restore from the backup of" drop-down menu once it's been restored. Your previous content and settings will be restored to the iPhone 3G, excluding Cydia and any software installed through Cydia.
Tips and warnings
- Should you want to jailbreak the iPhone 3G again after restoring it, a different procedure may be required due to any updates to the official firmware.
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