Can't update or uninstall built-in Whatsapp I have an iBall Slide 3G 7334i tab which has a built-in Whatsapp v.2.9.5196 which has provision to Force Stop and Disable but not Uninstall. I can't either uninstall or update and the message:


  "Your phone date is inaccurate.Adjust your clock and try again"


keeps on coming. 

I have searched all over and I can't get the remedy.
You have to uninstall and reinstall latest version of WhatsApp. It will fix your issue.
Since your phone have built-in WhatsApp Application(system app) you can't normally uninstall your App.

Try to uninstall using Debloater which helps to remove a built-in App without root.

After uninstalling try to install a latest version of WhatsApp APK file from here

Source