How to Sideload APK Files on Samsung Galaxy Safely [2026]

Sideloading lets you install Android apps (APK files) on Samsung Galaxy that aren't available on Google Play or Galaxy Store. Here's how to do it safely.

Step 1: Download the APK from a Trusted Source

• APKMirror.com — vetted, verified APKs
• Official developer websites (e.g., download directly from the developer)
• ❌ Avoid: random APK sites, Telegram groups, or unofficial mirrors

Step 2: Locate the Downloaded APK

Open My Files → Downloads and tap the APK file you downloaded.

Step 3: Allow Installation from This Source

The first time you try to install an APK from a file manager, you'll see: "For your security, your phone is not allowed to install unknown apps from this source."

• Tap Settings → toggle on Allow from this source for your file manager only.

Step 4: Install the APK

Go back to the APK and tap Install → follow the prompts.

Step 5: Immediately Disable Unknown Sources

After installation:

1. Go to Settings → Apps → [File Manager App] → Install Unknown Apps.
2. Toggle it Off again.

This prevents other apps (or malware) from silently installing packages.

Step 6: Run a Security Scan

Open Samsung Members → Support → Diagnostics or run Play Protect scan (Play Store → Profile icon → Play Protect → Scan).

⚠️ Warning

If Auto Blocker is enabled, sideloading will be blocked. You'll need to temporarily disable Auto Blocker in Settings → Security and Privacy → Auto Blocker.