Some flip phones block WhatsApp installation. Here’s how to install and run it manually.
Step 1: Enable Installation from Unknown Sources
If your phone doesn’t allow WhatsApp installation, enable Unknown Sources:
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Go to Settings > Security.
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Enable Install unknown apps.
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If this option isn’t available, use ADB.
Step 2: Download an Older WhatsApp APK
Some flip phones do not support the latest WhatsApp version. Download an older version from:
Choose an older but stable version that works on low-end devices.
Step 3: Install WhatsApp via ADB
If your phone blocks the installation, install it using ADB:
adb install whatsapp.apk
If you get a permission denied error, use:
adb shell pm grant com.whatsapp android.permission.INSTALL_PACKAGES
Step 4: Bypass Device Restrictions (If Blocked)
If WhatsApp won’t open, try spoofing a different device model:
adb shell settings put global device_name “Samsung Galaxy S21”
adb shell settings put global device_model “SM-G991B”
This makes your flip phone appear as a supported device.
Step 5: Enable Background Services for WhatsApp
Some flip phones block background apps, causing WhatsApp to disconnect. Fix this using ADB:
adb shell settings put global app_standby_enabled 0
adb shell settings put global background_data 1
Now, WhatsApp should stay online.