If some of the contacts don’t have WhatsApp, you can send an invitation link to that person. Since you’ve allowed WhatsApp access to your contacts, you can chat with anyone who has WhatsApp on their device.
At this point, you’ve successfully signed in and you can use the app. An SMS is sent to you with a verification code, type that code into the designated field and select Next. Now, you need to type the phone number and hit OK to confirm your choice. If you deny access to media, photos, and files you can go back to this setting and allow access after the fact.
Tap Allow, so WhatsApp can use your media, photos, files, and contacts. Two more pop-up windows appear asking you to grant access to your Kindle Fire.
