Enable RCS in your messaging app’s settings — Android users open Google Messages > RCS chats, iPhone users go to Settings > Apps > Messages > RCS Messaging.
Rich Communication Services (RCS) is the modern upgrade from SMS and MMS, bringing read receipts, typing indicators, high‑res media, and better group chats. Turning it on takes about a minute, but the exact steps differ between Android and iPhone. Here’s how to enable RCS on both platforms, plus what to check if the toggle won’t appear.
What Is RCS And Why Enable It?
RCS is an industry standard designed to replace the decades‑old SMS protocol. It uses Wi‑Fi or mobile data instead of the cellular voice channel, so messages feel more like WhatsApp or iMessage: you see when someone is typing, when they’ve read your message, and you can share full‑resolution photos and videos. Google Messages and Apple’s Messages app both support RCS, but each requires a quick setup step.
How To Enable RCS On Android (Google Messages)
On Android, the RCS setting lives inside the Google Messages app — not in the system settings. Google’s official instructions are straightforward.
- Open Google Messages.
- Tap your profile picture or icon in the top‑right corner.
- Tap Messages settings.
- Tap RCS chats. (If you don’t see that label, look for Chat features instead — older versions use that name.)
- Turn RCS chats on.
Once enabled, you’ll see optional controls for Send read receipts, Show typing indicators, and Resend messages automatically. You can adjust them on the same screen.
Samsung device users: Google’s support pages note that most Samsung phones can also enable RCS using the stock Samsung Messages app. Open Samsung Messages, go to Menu > Settings > RCS chats settings > Rich Communication Settings (RCS), and toggle it on.
How To Enable RCS On iPhone
Apple added RCS support in iOS 18. The setting is inside the Settings app, not the Messages app itself.
- Open the Settings app.
- Tap Apps.
- Tap Messages.
- Tap RCS Messaging.
- Turn RCS Messaging on.
Apple also lists a separate RCS Business Messages toggle in the same menu — that’s for business‑related conversations and can be left off unless you need it. In newer iOS beta versions (26.5+), Apple is testing an End‑to‑End Encryption (Beta) option under RCS Messaging.
Platform Comparison: Enabling RCS
| Platform | How To Enable | Notes |
|---|---|---|
| Android (Google Messages) | Google Messages > Profile > Messages settings > RCS chats | May be labeled “Chat features”; over Wi‑Fi or data |
| Android (Samsung Messages) | Samsung Messages > Menu > Settings > RCS chats settings | Carrier support varies; toggle says “Rich Communication Settings” |
| iPhone (iOS 18+) | Settings > Apps > Messages > RCS Messaging | Requires carrier support; RCS Business Messages is separate |
| Both participants needed | Both people must have RCS enabled and a compatible app | If one side uses SMS, features fall back to basic text |
| Carrier disabled | Toggle will not appear or shows “Disabled by your carrier” | Contact the carrier to enable RCS on your line |
| Works over Wi‑Fi | RCS uses data connection, not cellular SMS | No extra cost beyond data plan, but setup SMS may apply |
| Encryption support | Google Messages has end‑to‑end encryption for 1:1 chats; iPhone encryption is in beta | Core RCS protocol does not require E2E; depends on app implementation |
What To Do If The RCS Toggle Is Missing
RCS depends on three things: your device, your software version, and your carrier. If you can’t find the toggle, start with the most common fix.
- Update your device. Install the latest system updates. iPhone RCS requires iOS 18 or newer. Android RCS is supported on most phones running Android 5.0+, but Google Messages should be updated from the Play Store.
- Check carrier support. Even with a compatible phone, some MVNOs or smaller carriers disable RCS. Google’s RCS help page notes a specific error: “RCS chats are disabled by your carrier.” In that case, only your carrier can enable it.
- Use the right app. On Android, RCS works with Google Messages or Samsung Messages. If you use a third‑party SMS app, you’ll need to switch to Google Messages to access the feature.
- Look for “Chat features”. Some Android builds still use the older label. The steps are identical.
- Remove and reinsert the SIM. In rare cases, the SIM provisioning resets RCS support. If you recently switched SIMs, wait a few hours or restart the phone.
If nothing works, Google’s official RCS support page includes a deactivation portal and additional troubleshooting steps. Apple’s support article for RCS also walks through carrier‑specific checks.
Common RCS Issues And How To Fix Them
| Issue | Likely Cause | Fix |
|---|---|---|
| Toggle not appearing | Device unsupported or carrier blocks RCS | Update software; contact carrier |
| Shows “Disabled by your carrier” | Carrier has not enabled RCS on your line | Call carrier; ask them to activate RCS |
| Messages still send as SMS | Recipient doesn’t have RCS, or you’re not using Wi‑Fi/data | Check compose bar: “Text message” = SMS, “RCS message” = RCS |
| End‑to‑end encryption not working | iPhone not yet updated to beta, or group chat | Ensure both sides use Google Messages or compatible app |
| RCS stops after SIM change | Number verification times out | Wait or disable RCS via Google’s web portal |
| RCS not working over Wi‑Fi | Data connection restricted or VPN issue | Check that Wi‑Fi has internet access; disable VPN temporarily |
| Business messages not separate | RCS Business Messages toggle is off | Go to iPhone RCS settings and toggle “RCS Business Messages” on |
Final Checklist For Enabling RCS
Before you’re done, confirm each of these:
- RCS toggle is turned on in the correct app or Settings menu.
- You have a Wi‑Fi or mobile data connection active.
- Your carrier supports RCS (if the toggle still won’t stick, contact them).
- The person you’re messaging also has RCS enabled — you’ll see “RCS” or “Chat” in the compose bar.
That’s all it takes. Once RCS is active, your messages will feel faster, richer, and more secure on both Android and iPhone.
References & Sources
- Google Messages Help. “Turn on RCS chats in Google Messages.” Official instructions for Android devices.