Here's a step-by-step guide on how to open File Manager and complete the Midiag.apk installation:
The "Open File Manager And Complete Midiag.apk Installation" prompt usually appears when you're trying to install an APK file (like Midiag.apk) on your Android device. By default, Android devices have a security feature that prevents the installation of APK files from unknown sources. To bypass this restriction, you'll need to access the File Manager app to complete the installation.
Before we dive into the installation process, let's briefly discuss what Midiag.apk is. Midiag.apk is an Android application package file that contains the MIUI Diagnostic tool, a built-in app on Xiaomi devices that allows users to perform diagnostic tests on their device. However, if you're a user of a non-Xiaomi device or want to use the app on a device that doesn't have it pre-installed, you'll need to manually install the Midiag.apk file.