If you still want to attempt an installation, you can find archived versions on these community-trusted platforms:

to see if there is a "Custom ROM" (like LineageOS) for your phone model that updates it to Android 5.0 or higher. This is the most reliable way to make WhatsApp work. WhatsApp Web (Limited):

This is Meta’s kill switch. You cannot bypass it. Your only options are:

: The Google Play Store will generally not offer the download for unsupported OS versions.