Open File Manager And Complete Midiag.apk Installation. Then Try Again Jun 2026

If you are seeing the message it means a diagnostic or system tool—often related to Xiaomi (MIUI) or Qualcomm devices—tried to run a function that requires a specific system app ( ) that isn't fully installed or active.

. You may need to grant permission to "Install unknown apps" for the File Manager in your system settings. If you are seeing the message it means