How do I activate iMessage on iPhone 7?

We are neither Apple nor mind readers. Getting effective help here happens when you give details about your device and the symptoms you have.

This is not chat. "Now!" does not happen here. Repeating the question may cause some people to avoid your question..

Writing an effective Apple Support Communities question

If English in not your primary language, plese tell us what is. Apple has seven other forums in other languges to which we can refer you.

Please read the following article then post back with your question –

Writing an effective Apple Support Commun… - Apple Community

I want my iMessage to started working please