General Physics 2 - QuexHub

Download: General Physics 2 - QuexHub 121 APK

  • Compatible with Android 4.4+
  • Size: 49.5 MB
  • Developer: PERC Learning Portal
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Android Certificate

Package:  com.gerund.hubphysics2
File MD5:  7499a1ffc8783edd6beabe225c805c64
Certificate MD5:  7a9ba80b38d97f852a0027ab446fabe6
Certificate:  Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            0f:15:23:ad:60:b6:68:df:92:5d:3b:f3:22:7a:33:d1:82:f7:1d:04
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, ST=California, L=Mountain View, O=Google Inc., OU=Android, CN=Android
        Validity
            Not Before: Jan 19 02:32:07 2018 GMT
            Not After : Jan 19 02:32:07 2048 GMT
        Subject: C=US, ST=California, L=Mountain View, O=Google Inc., OU=Android, CN=Android
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (4096 bit)
                Modulus:
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                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
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📱 How to Turn Off Google Play Protect & Enable APK Installation

Important: Disabling Play Protect turns off automatic security scanning. Do this only temporarily and only if you trust the app source.

🍀 Method 1: Turn it off through the Google Play Store

  1. Step 1: Open the Google Play Store app on your Android phone.
  2. Step 2: Tap your profile picture or initial in the top right corner.
  3. Step 3: Select “Play Protect” (it has a shield icon).
  4. Step 4: Tap the gear icon ⚙️ in the top right corner (Settings).
  5. Step 5: You'll see two switches:
  • Scan apps with Play Protect
  • Improve harmful app detection

Step 6: 👉 Turn both switches off (slide them to the left).
When asked for confirmation:
“Turn off Play Protect scanning?” → Tap Turn off.

🍀 Method 2: Turn it off from your phone’s Settings app (some phones)

  1. Step 1: Open your phone’s Settings.
  2. Step 2: Scroll down and select Google → then Security.
  3. Step 3: Tap Google Play Protect.
  4. Step 4: Turn off “Scan apps with Play Protect.”

Tip: To turn it back on later, go to Play Store → profile icon → Play Protect → ⚙️ and switch the options back ON.

🍀 Method 3: Allow installation of APK files (outside Google Play)

  1. Step 1: Open your phone’s Settings.
  2. Step 2: Tap Security (or Privacy & Security on newer Android versions).
  3. Step 3: Tap Install unknown apps (or Install unknown sources).
  4. Step 4: Choose the app you’ll use to open/download the APK (e.g., Chrome, Files).
  5. Step 5: Switch on “Allow from this source.”
  6. Step 6: You can now install APK files from that app.

Safety reminder: After installing, turn Play Protect back on and consider disabling “Allow from this source” again.

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