[Sam Joseph1]

i deleted whatsapp from my phone,i want it back,what should i do
i went to app store to download it again it says already installed.
what should i do?

[BigBadWulf]

With your world open (your app list), hold alt and press R S T. It will close in a few seconds, then when you open App World again, the list should be correct.

[amjass12]

and if the above does not work... did you restart your phone after you uninstalled whatsapp?

if not it might still think whatsapp is still there and therefore you need to restart to fully delete it from the system

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