# The app was not installed

#### 🔍 Problem:

After downloading the APK file and trying to install it, you may see the message:

> **"App not installed"**\
> or\
> \&#xNAN;**"The app was not installed"**

This is a common issue that occurs when installing apps outside the Google **Play Store** (sideloading APKs), especially on newer Android versions.

#### 🧭 Cause:

1. **Google Play Protect** blocks the installation by default.\
   Since the **Agent** app is not listed on Google Play, it is flagged as “unknown” or “potentially harmful” even if it’s safe.
2. **Device Security Settings** prevent unknown sources.\
   The device may not allow apps to be installed from your browser or file manager.
3. **APK Corruption or incomplete download.**\
   If the APK was not downloaded completely, Android may silently fail to install it.

***

#### ✅ How to Fix:

**1. Allow Unknown Apps to Install**

* Go to: `Settings → Security → Install unknown apps`
* Grant permission to the browser or file manager you used to download the APK (e.g., Chrome)

**2. Disable Play Protect (temporarily)**

> ⚠️ Use with caution. Only do this if you trust the app source

* Open Google Play Store
* Tap your **profile icon → Play Protect → Settings**
* Turn off **"Scan apps with Play Protect"**

> 🔁 You can re-enable it after installation is complete.

**3. Re-download the APK**

* Delete the previous file and try downloading again from the official link (see Download session).

***

#### 💡 Pro Tip:

Some Android versions require restarting the phone or clearing the Play Store cache after changing install settings.