By default, apps and games downloaded from third-party app stores on Huawei Nova 3e are considered apps of untrusted origin, unknown apps. As a result, the security feature on the Android operating system will prevent you from installing APK files from these sources to protect your device from malicious code. Therefore, if you still want to install apps and games from third parties, you need to enable the installation of apps from untrusted sources on Huawei Nova 3e. Detailed instructions will be provided in the following article.
Guide to Installing Unknown Apps on Huawei Nova 3e
Installing Apps from Untrusted Sources on Huawei Nova 3e
Step 1: First, on your Huawei Nova 3e phone, access the Settings
Step 2: Next, scroll down to find and select Security & Privacy
Step 3: Select More
Next, locate the Install Unknown Apps feature and tap on it.
Step 4: Proceed to find the apps or browser from which you intend to install apps or games to your Huawei Nova 3e phone. For example, here, Mytour.vn will download apps and games from the Chrome browser.
Select the Chrome browser app -> Find Allow App Installs and activate this feature by dragging the toggle to the right. After successful activation, the toggle bar will turn green.
Here is Mytour.vn's guide on how to install apps from unknown sources on Huawei Nova 3e. Galaxy A51 is a recent product line introduced by Samsung in the market. If you are also using this smartphone and interested in enabling apps from unknown sources on this device, you can refer to how to Install Unknown Apps on Samsung A51 to do so.
https://Mytour.vn/cai-ung-dung-khong-ro-nguon-goc-tren-huawei-nova-3e-26295n.aspx
Wishing you success in following the steps above.