My iMessages and FaceTime activation has consistently failed even after switching devices and changing apple id. How do I resolve this issue

See the Apple Support article(s) below.

If you can’t turn on or sign in to iMessage or FaceTime.  *

Some things you can try. Do you have access to another WiFi network where you can try? That has worked for several people.

Try a restart.

Restart your iPhone, iPad, or iPod touch    *

Try a forced restart. See the section towards the end of the article.

Reset Device. -

If necessary

Hard reset.     -

Do a backup and try a factory reset. Then restore from the backup.

Restore to Factory setting.      *

Restore - If you see an error when you update or restore your iPhone, iPad, or iPod.   *

Backup - Restore your device from an iCloud or iTunes backup.     *

If you still have problems, have someone else attempt to sign in using their Apple ID. If they can successfully sign in and use Messages/FaceTime, it may be your Apple ID. Someone I know had this happen and I was able to sign in using my Apple ID. After a call to Apple Support and then being elevated to a tier 2 support person, it turned out it was a problem with their Apple ID. It took the software engineers 3-4 days to fix the problem. When calling Apple, make sure you tell them it is an Apple ID problem so you don't get charged.

There is a contact link.

Apple ID - Official Apple Support.    -

Contact Apple for help with Apple ID account security - Apple Support.  *  (The link doesn’t always load)

Get Support    -  Work through the screens to get a chat option. 

Apple Support schedule phone call.   -

Apple on Twitter -