I can't send and receive iMessages on my Apple iPhone 6s iOS 12.0

We have found 5 possible solutions to your problem.
Before you start this troubleshooting guide you need to check one important thing:

Can you make a voice call?
Yes No

Why do we ask this question?

It's important to find out if you can make a call. If you can't make a call, you need to solve this problem first. When the problem is solved, you will most likely also be able to send and receive iMessages.

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