If you are still using a device with Android 4.4.2, here is how you can proceed:
Clear your system cache, delete old photos, or uninstall unused applications to free up at least 200MB of internal storage space. Secure and Practical Alternatives for Android 4.4.2 Users
La solución más duradera y segura no consiste en modificar la aplicación, sino en actualizar el sistema operativo del teléfono de forma no oficial. whatsapp para android 442 install
Si el hardware del dispositivo no permite la actualización del sistema, se puede emplear el navegador de internet, aunque con ciertas condiciones.
WhatsApp-Messenger-2.23.8.76.apk
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Si estás intentando rescatar un dispositivo específico, por favor compártenos: If you are still using a device with Android 4
If you must attempt to run WhatsApp on a KitKat device for data recovery or temporary communication, you cannot use the Google Play Store. Instead, you must manually install the application using an APK (Android Package) file.
Check for System Updates: Go to Settings > About Phone > System Updates to see if a official upgrade to Android 5.0 or higher is available for your specific device model. WhatsApp-Messenger-2
Device Upgrade: If the device cannot be upgraded past Android 4.4.2, upgrading to a newer budget device running modern Android is the only way to guarantee full WhatsApp functionality. If you want to try setting this up, let me know: What you are using? Do you have another smartphone that is fully working? Do you need help finding a trusted APK link ?