I downloaded apk files from Chrome. After the downloads completed, I pressed Install. But after 2~3 seconds, it just said App not installed. For example, I downloaded an app called "TutuApp". It won't install and doesn't give any information on why so I can fix it.

Anyone knows how to fix this?

My phone is Huawei Mate 9 with Android version 8.0.0. I'm new to Android and a complete noob.

  • Have you provided permissions like as shown in this link android.gadgethacks.com/how-to/…
    – Rahul Gopi
    Dec 28 '18 at 11:33
  • it worked now... I just factory reset my phone and it worked... even though it didn't work after the last 3 times i reset the phone... ehh... it work... thanks for helping anyway!
    – Derek Dinh
    Dec 28 '18 at 12:23

There's 'App not Installed' Error on Android on Stack Overflow.

For my case, Google Protect was on, so I was unable to install app.

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