Are you trying to recover from this device, or do you just need a way to send messages on it?
Since you are not downloading from the Google Play Store, you must allow installation from third-party sources. Download Whatsapp Old Version For Android 2-3-6
Meet Sarah, who has been using her Android device with version 2.3.6 for years. She relies heavily on WhatsApp to stay in touch with her friends and family. However, when she tried to update WhatsApp to the latest version, she encountered compatibility issues. The app wouldn't install, and she was left with a non-functional WhatsApp. Are you trying to recover from this device,
Ultimately, while you can find archives of these old versions on sites like APKMirror, they no longer function as communication tools. WhatsApp officially ended support for Android versions older than 4.1 years ago. If you are looking to keep an old device useful, it may serve better as a dedicated offline music player or an e-reader rather than a messaging hub. She relies heavily on WhatsApp to stay in
The phone ran Android 2.3.6 Gingerbread—a relic of a simpler digital era.
: Even if you successfully install an old APK, you will likely encounter a "This version of WhatsApp became out of date" message that blocks usage. How to Find and Install an Older Version (Limited Success)