I. Tools/raw materials:

Huawei Mate 30, Android 10, EMUI 1 1.0.

Second, the specific steps:

1. Select Security and Privacy: Open the phone, find the setting options on the phone, and click the "Security and Privacy" option.

2. Click more security settings: In the security and privacy interface, click the "More security settings" option below.

3. Turn on the switch for downloading foreign applications: On more security settings pages, turn on "Download foreign applications" and turn off "Detect foreign applications". In this way, Huawei mobile phones can ignore the "inconsistent signature" to install the App.