If Apple is still signing an older iOS version, i4Tools lets you downgrade smoothly without data loss.
Generally, no. Most operations (such as backing up, transferring files, and checking device information) do not modify system files and therefore do not affect your warranty. However, jailbreaking your device will void your warranty, just as it would if you jailbroke using any other method.
Launch the installer. If the setup wizard appears in Chinese: i4tools english version
Essential for anyone buying or selling used iPhones to confirm device authenticity. ⚡ Easy iOS Flashing & Restoring
Create customized backups of specific data types instead of a full system image. If Apple is still signing an older iOS
A: There are a few common reasons:
Always generate a full backup using the software's backup module before attempting to flash firmware or run jailbreak scripts. However, jailbreaking your device will void your warranty,
The standard Chinese version of i4Tools does not have a built-in "Language" setting to toggle to English. Some users attempt to use translation patches, but these are often: Unreliable : They frequently break during software updates. : Downloading modified
: Users can easily upgrade or downgrade iOS firmware and perform jailbreaks.
Common components across similar tool suites (applies to i4tools English version unless product documents differ):