Symptoms
- Messages send as plain SMS instead of RCS with read receipts and typing indicators
- RCS toggle is missing or grayed out in settings
- RCS worked before but stopped after an update
- Chat features work with some contacts but not others
Likely causes
- CommonRCS not enabled in the messaging app's settingsRCS (chat features) typically needs to be turned on explicitly.
- CommonCarrier doesn't support RCS or hasn't enabled it for your lineNot all carriers and plans fully support RCS chat features.
- CommonRecipient's phone or carrier doesn't support RCSRCS only works when both sides support it; otherwise it falls back to SMS.
- PossibleDefault messaging app isn't set to the one supporting RCSIf a different app is set as default, RCS features may not activate.
- Less commonTemporary server-side activation delayRCS registration can occasionally take time to activate after being turned on.
What to do
- Open your messaging app's settings and confirm chat features (RCS) are turned on.
- Make sure the RCS-capable app (commonly Google Messages) is set as your default messaging app.
- Confirm with your carrier that RCS is supported and enabled on your plan.
- Check that the recipient also has RCS enabled, since it requires both sides to support it.
- Restart the phone and reopen the messaging app to force re-registration.
- Wait a day if you just enabled it, since activation can be delayed.
When to call a pro
If RCS won't activate after confirming carrier support and settings, contact your carrier or the messaging app's support for account-side activation help.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.