I have a problem with my WhatsApp. I did install it but when I wrote my number to verify. It keeps on saying, "please update". The confusing part is when I write someone's number who have WhatsApp, it verifies but if I write someone's number who doesn't use WhatsApp, it says the very same thing. Unfortunately, it shows my phones as not available on WhatsApp. I am using Nokia X2 phone.
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