If you get a notification saying “This device is temporarily restricted” when trying to enable the “Install via USB” option, you can solve this problem in three different ways. One is switching from Wi-Fi to your mobile data. Another solution is installing a VPN compatible with the Chinese web and apps. However, this option isn’t recommended unless you’re actually a developer, as it can lead to data leaks. The third option requires several steps that include disabling MIUI optimization.