Download: HSC All Guide Book 2025 1.0.33 APK

Compatible with Android 4.4+

Developer: Class Notes BD

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Android Certificate

Package:  com.classnotebd.hsc.businessorganization.notes

File MD5:  96fb751fc11fae8fc24a53bcb320bbfc

Certificate MD5:  c8be97cc4bc79515e36e93102abd6b83

Certificate:  Certificate:
Data:
    Version: 3 (0x2)
    Serial Number:
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Signature Algorithm: sha256WithRSAEncryption
    Issuer: C=US, ST=California, L=Mountain View, O=Google Inc., OU=Android, CN=Android
    Validity
        Not Before: Jul 26 17:38:28 2019 GMT
        Not After : Jul 26 17:38:28 2049 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

Step 1: Open the Google Play Store app on your Android phone.
Step 2: Tap your profile picture or initial in the top right corner.
Step 3: Select “Play Protect” (it has a shield icon).
Step 4: Tap the gear icon ⚙️ in the top right corner (Settings).
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)

Step 1: Open your phone’s Settings.
Step 2: Scroll down and select Google → then Security.
Step 3: Tap Google Play Protect.
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)

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

Data safety

Here's more information the developer has provided about the kinds of data this app may collect and share, and security practices the app may follow. Data practices may vary based on your app version, use, region, and age.