iMessage allows you to send messages without carrier charges over the internet. However, when you switch from an iPhone to a non-Apple device, you may sometimes see a pop-up saying “Message not delivered.” To fix this, you need to deregister your mobile number.
How to Unsubscribe from iMessage from Your Phone Number
In this guide, I’ll show you how to sign out of iMessage and make sure your phone number is no longer linked to iMessage. There are two ways to do this: the easiest is from your iPhone, and the other is online without an iPhone. Let’s dive in!
If you’ve moved your SIM card to a non-Apple phone, first deregister iMessage on your iPhone. To do this:
Please note: If you have already switched to another device, you will need to reinsert your SIM card into your iPhone and deregister it.
