If Google Messages RCS is not working on Android, start by checking your internet connection, the app’s RCS status, and whether your phone number is verified. RCS can also fail because of carrier or service availability, an outdated app, a SIM change, or a temporary problem; the steps below help identify which one applies and what to try next.
What RCS does and what “not working” means
RCS, or Rich Communication Services, adds internet-based messaging features to compatible messaging apps. Depending on the devices, networks, and features available to both people, RCS chats can support typing indicators, read receipts, higher-quality media sharing, and messaging over Wi-Fi or mobile data. If RCS is unavailable, Google Messages may send a message as SMS or MMS instead, when that option is enabled and the carrier can deliver it.
A conversation can appear to stop working for several different reasons. RCS may be disconnected for your number, the other person may not have RCS, your data connection may be unavailable, or a particular feature may not be supported in that chat. Check the status in the app before assuming that every undelivered message has the same cause.
Check RCS status and basic requirements
- Open Google Messages and tap your profile picture or initial, then tap Messages settings.
- Tap RCS chats. The wording or available options can vary by device, app version, and region.
- Look at the status shown on the RCS chats screen. If it says connected, RCS is enabled for your number. If it shows a problem or asks you to verify, follow the in-app prompt.
- Confirm that mobile data or Wi-Fi works by opening a webpage. RCS needs an internet connection; ordinary SMS generally uses the cellular messaging service instead.
RCS availability depends on your country, carrier, device, software, and the messaging setup of the people in the conversation. Both participants generally need compatible RCS service for an RCS conversation. If the other person is using SMS, an incompatible app, or an unregistered number, your message may use SMS or MMS rather than RCS.
Fixes to try, in order
Try these steps one at a time, checking the RCS status and sending a test message after each change. Avoid repeatedly switching RCS on and off while a verification or connection attempt is still in progress.
- Check the connection. Switch between Wi-Fi and mobile data, or briefly turn Airplane mode on and off. If other internet apps also fail, fix the connection before troubleshooting Messages.
- Update Google Messages. Open the Play Store, find Google Messages, and install an available update. Also install pending Android system updates through your phone’s Settings app when appropriate.
- Restart the phone. A restart can clear a temporary app or network problem. Then reopen Messages and check Messages settings > RCS chats.
- Check the default SMS app. In Android Settings, look for Default apps or SMS app and confirm Google Messages is selected if you intend to use it. Menu names differ across Android devices.
- Review your number and SIM. Make sure the phone has the correct active SIM or eSIM and can send ordinary texts. If you recently changed phones, SIMs, or numbers, RCS may need to reconnect or verify the number again.
- Follow the RCS prompt. If the status says it is setting up, wait and follow any verification instructions. If it remains stuck, use the troubleshooting or support options shown in the RCS settings rather than repeatedly changing settings.
If messages fail only with one contact, ask whether that person has RCS enabled and a working connection. If they have recently changed devices or numbers, their registration may also be in transition. A group conversation can have different compatibility requirements from a one-to-one chat.
Understand fallback to SMS or MMS
Google Messages can offer to resend an undelivered RCS message by SMS or MMS, depending on your settings and the type of message. SMS is intended for text and has limits that differ from internet messaging; MMS is commonly used for media or group messages when RCS is not available. Carrier charges, limits, and availability vary, so check your mobile plan if that matters.
Fallback is useful when a recipient is temporarily offline or lacks RCS, but it does not restore RCS features. Read receipts, typing indicators, and high-quality media handling may differ or be unavailable after a message is sent through SMS or MMS. Check the resend prompt before choosing it, especially for a photo, video, or group message.
Privacy, encryption, and common misconceptions
RCS is not simply another name for SMS. It uses an internet connection and supports features that SMS does not. Google Messages indicates when a conversation is end-to-end encrypted; do not assume that every RCS conversation, or every fallback SMS/MMS message, has the same encryption status. Look for the app’s encryption indicator in the conversation when that distinction matters.
Turning off RCS does not usually delete your ordinary SMS history, but changing messaging settings or switching devices can affect whether a number remains registered for RCS. If you are moving to a different messaging setup, follow the app’s or carrier’s current instructions for disabling or transferring RCS. If messages are still being routed unexpectedly after a number or device change, contact your carrier or use the official Google Messages help options.
When to contact support
Contact your mobile carrier if the phone cannot send or receive ordinary SMS, the SIM is not registering, or the carrier confirms a service issue. Contact Google Messages support through the app’s help options if SMS works but RCS remains stuck on a setup or connection status after you have checked the app, internet connection, and number.
When asking for help, note your phone model, Android version, carrier, whether you recently changed SIMs or devices, and the exact RCS status shown. Do not share verification codes or private message contents. These details help distinguish an app problem from a carrier or account-registration issue.
Frequently Asked Questions
Why does Google Messages say “Connecting” or “Setting up”?
It is trying to register your number for RCS. Check that the phone has internet access and can use the active SIM, then follow any verification prompt. If the status does not change, try an app update and restart; ongoing carrier or service problems may require support.
Why are my messages sending as SMS instead of RCS?
The recipient may not have RCS available, your RCS connection may be down, or the phone may lack internet access. Check the RCS status and connection. SMS fallback is a different delivery method, not proof that the message failed.
Do both people need Google Messages for RCS?
They need compatible RCS messaging service, but not necessarily the same messaging app. Availability and features depend on each person’s device, app, carrier, and region.
Will turning RCS off delete my texts?
Turning off RCS changes how compatible chats are sent; it is not generally a command to erase your SMS history. Back up important messages before major device changes, and follow the current transfer instructions for your phone and messaging service.
Why do RCS chats work on Wi-Fi but not mobile data?
Mobile data may be disabled for the app, unavailable in your location, restricted by a data setting, or affected by a carrier issue. Check that mobile data works for other apps and review your phone’s data settings. Menu names vary by device.
Related
General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.
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