What Causes iMessage Activation Errors?
Verify iMessage is on.If iMessage isnt on, it wont work.
If you do find that it was off, openSettings>Messages, and check theiMessage toggle.
If its gray, tap it to turn it on.
This is the simplest fix, so it should be one of the first things you try.
Check Apple’s server status page.
This page displays various Apple services' current status and information about scheduled maintenance periods.
You may need to reboot your phone after the servers have come back up.
Check your iPhone’s internet connection.
Refresh your iMessage connection.
Youll need to turn off iMessage, kickstart your phone, and turn it back on.
Start by openingSettings>Messages, and tap theiMessage toggleto turn it off.
Then reset your phone, openSettings>Messagesagain, and tap theiMessage toggleto turn it back on.
Sign out of Apple ID/Apple Account, then sign back in.
OpenSettings, tapyour name, and tapSign Out.
Then cycle your iPhone, openSettings, and tapSign in.
Verify your time and date configs.
Fix the time and date tweaks if theyre wrong, then check to see if iMessage works.
Navigate toSettings>General>Date & Time, and verify that the information is correct.
If your iPhone’s operating system (iOS) is outdated, that can prevent iMessage from working correctly.
Check for any available updates, install, and then check iMessage.
You canupdate your iPhone wirelesslyorupdate the iPhone via iTunes.
Factory reset your iPhone.
