: The diagnostic tool was downloaded to your device's internal storage, but the system blocked the automatic launch of the installer. Permission Blocks
By default, Android blocks the installation of apps from outside the Google Play Store to protect your device from malware. To install Midiag.apk, you must grant permission to your file manager.
Navigate to the trusted website hosting the file. Tap the download link. Open File Manager And Complete Midiag.apk Installation
Go to Settings > Security (or Settings > Privacy > Special Access on newer Android versions).
Installing third-party applications on Android devices that are not available on the Google Play Store requires a direct installation file, known as an APK (Android Package Kit). The is a specialized diagnostic tool, often used for automotive or technical troubleshooting, which must be sideloaded. : The diagnostic tool was downloaded to your
I can provide tailored instructions for your exact device setup.
DeviceDiagnostics 15 (Android 15+) - Xiaomi Inc. - APKMirror Navigate to the trusted website hosting the file
Tap on (often found under "Advanced" settings). Select Install Unknown Apps .