How to use the self-signed tool Cydia Impactor;

Preparation: Save the software installation package to the computer; Download the corresponding version of the system in Cydia Impactor official website, and then decompress it. Don't double-click and run directly in the compressed package.

1. Connect the iPhone to the computer, double-click to run Cydia impactor, and drag the downloaded installation package (file in ipa format) to Cydia Impactor:

2. At this time, the prompt box for entering the Apple ID will pop up. Enter the Apple ID to sign, and click OK:

3. At this time, the password input box will pop up, and you can enter the password of Apple ID.

Note that two-step authentication must be turned off for the Apple ID used for signing. If your Apple ID has been verified in two steps, you can log in to the Apple ID on your computer, open "Security -App Password" in turn, and select "Generate Password". Then you will get a set of passwords in the format of "xxxx-xxxx-xxxx", just copy this password into the password input box.

4. Click "OK" in the warning prompt box to start installation and self-signing.

5. After the installation, open the iPhone Settings-General-Description file, find the newly installed software and click "Trust" to use it.

Note that the software installed by personal account is only valid for 7 days, and can be reinstalled according to the above process after expiration.