You type a message, hit send, and the little status circle just spins. Or the message says Sent but never shows Delivered, and your friend insists nothing arrived. RCS was supposed to make texting feel modern, with typing indicators, read receipts, and crisp photos, but when RCS messages are not sending, the whole experience falls apart.
In October 2026, Google itself acknowledged a bug that disrupted RCS message delivery for a subset of Google Messages users, with a fix rolling out over several weeks. But most RCS failures come from a shorter list of everyday causes: a stuck registration, an outdated app, or a network hiccup. Work through the 10 fixes below in order, from the quickest checks to the deeper resets.
Quick Answer
If your RCS messages are not sending, open Google Messages, tap your profile picture, go to Messages settings, then RCS chats, and check the status. If it does not say Connected, toggle RCS chats off, wait a full minute, and turn it on again. Next, update Google Messages and Google Play Services from the Play Store, then switch between WiFi and mobile data to rule out a network problem. Most cases clear up with one of these three steps, and if messages stay stuck, set failed messages to resend as SMS or MMS so nothing stays trapped.
Why Are Your RCS Messages Not Sending?
Based on Google support pages and thousands of user reports, these are the real causes behind most RCS failures:
- RCS registration stuck on Connecting, Setting up, or Verifying. The phone never finished registering your number with the RCS servers.
- Outdated Google Messages or Google Play Services. RCS depends on background services, not just the app you see.
- Weak or unstable internet. RCS needs a data connection, while SMS rides on the voice network.
- VPN or restrictive WiFi blocking RCS traffic. Hotel, office, and some public networks filter it.
- Old phone still holding your number. After a phone switch, the previous device can keep your RCS registration.
- Dual SIM mismatch. RCS ties to one number, and the wrong SIM settings break verification.
- Carrier does not support RCS on your line or plan. Some carriers and prepaid plans still lack it.
- Contact side issue. The other person turned RCS off, switched phones, or blocked the number.
- The October 2026 delivery bug. Google confirmed a subset of users hit disrupted RCS delivery while a fix rolls out.
- Corrupt app cache or Carrier Services data after an update.
10 Fixes That Work
Fix 1: Check Your RCS Status First
- Open Google Messages.
- Tap your profile picture in the top corner.
- Tap Messages settings, then RCS chats.
- Look at the status line. Connected means RCS is healthy. Connecting, Setting up, or Verifying means registration is incomplete.
- Note the phone number shown. If it is wrong or old, that is your problem.
Fix 2: Toggle RCS Chats Off and On
- In the RCS chats settings, turn the RCS chats toggle off.
- Wait a full 60 seconds. The deregistration needs time to complete.
- Turn it back on and wait up to 10 minutes for the status to change to Connected.
- Try sending a test message to someone you know has RCS.
- If it still shows Connecting after a full day, leave it off for 24 hours. Carriers limit verification attempts, and repeated retries can lock you out longer.
Fix 3: Update Google Messages and Google Play Services
- Open the Google Play Store.
- Search for Google Messages and tap Update if one is available.
- Search for Google Play Services and update it too. RCS registration runs through these background services.
- Restart the phone after both updates finish.
- Recheck the RCS status before testing again.
Fix 4: Switch Networks and Turn Off VPN
- If you are on WiFi, turn WiFi off and try sending over mobile data.
- If you are on mobile data, connect to a stable WiFi network and try again.
- Turn off any VPN completely. VPNs can block the ports that RCS uses.
- On hotel, office, or school WiFi, finish any captive portal sign in first, or switch to mobile data. These networks often filter messaging traffic.
- If data itself seems broken on Android, our guide on mobile data not working on Android covers the deeper data connection fixes.
Fix 5: Restart Your Phone
- Press and hold the power button and tap Restart.
- Wait for the phone to boot fully and reconnect to the network.
- Give RCS two to three minutes to register again after a restart.
- Test with a short text message before trying photos or videos.
Fix 6: Clear the Messages and Carrier Services Cache
- Go to Settings, then Apps, then See all apps.
- Tap Google Messages. On some phones it is listed as Messages by Google.
- Tap Storage and cache, then Clear cache. Do not tap Clear storage yet.
- Go back to the app list, find Carrier Services, and clear its cache too.
- Open Google Messages and check whether the RCS status improved.
- Only as a later step, use Clear storage on Google Messages. You will need to set it as the default SMS app again afterward.
Fix 7: Turn Off RCS on Your Old Phone
- If you recently switched phones, RCS may still be registered to the old device.
- If you still have the old phone, open Google Messages there and turn RCS chats off.
- If you no longer have it, visit the RCS deactivation page on the Google Messages website from a browser and remove your number.
- Wait a few hours, then turn RCS chats on again on your current phone.
- This fixes many cases where SMS works but RCS never connects after an upgrade.
Fix 8: Fix Dual SIM and iPhone RCS Issues
- On a dual SIM phone, open Messages settings and confirm which number RCS is registered to.
- Google guidance says the SIM used for calls should also be the data SIM when troubleshooting RCS.
- Google Messages now lets you see which SIM a conversation uses and switch it inside the thread.
- On iPhone, RCS arrived with iOS 18. Go to Settings, then Apps, then Messages, and confirm RCS Messaging is turned on.
- On iPhone, also confirm your carrier supports RCS. If your carrier never enabled it, RCS stays unavailable.
Fix 9: Let Stuck Messages Fall Back to SMS or MMS
- In Google Messages, tap your profile picture, then Messages settings, then RCS chats.
- Tap Resend messages and choose how failed RCS attempts should retry.
- Turn on Automatically resend as text when RCS is unavailable, so urgent messages do not sit stuck.
- Know the tradeoffs. MMS compresses photos and videos, and the SMS with a link option can create a public link. Use it for casual media, not sensitive files.
- If a message has been stuck for hours, long press it and choose to resend it as SMS manually.
Fix 10: Reset Network Settings and Check With Your Carrier
- Resetting network settings clears WiFi, Bluetooth, and cellular configurations that can block RCS. Our guide on how to reset network settings walks through the exact menu path for your phone.
- After the reset, reconnect to WiFi and recheck the RCS status.
- If your carrier offers RCS only on certain plans, confirm your plan includes it.
- Ask the carrier whether there is an outage or a provisioning issue on your line.
- As a final check, confirm the contact has not blocked you and their number is correct. If messages fail with only one person, the problem is usually on their end.
Still Not Working?
If you worked through all 10 fixes and RCS messages are still not sending, try these escalation steps:
- Check whether you are in the group hit by the October 2026 delivery bug. If texts send fine but photos and videos stay stuck in RCS chats, update Google Messages and wait for the rollout, which Google said could take a couple of weeks.
- Use the RCS deactivation page to fully remove your number, wait 24 hours, then register fresh.
- Do not factory reset as a first move, and avoid clearing all app storage repeatedly. Google has not recommended aggressive resets for the current bug.
- For urgent media, share a Google Photos link or use another app temporarily. If message delivery problems also hit other apps, see our guide on WhatsApp messages not delivered on Android for the messaging specific checks that overlap.
Frequently Asked Questions
1. Why do my RCS messages say sent but never show delivered?
The message reached the Google servers but the recipient phone never confirmed receipt. Their RCS may be off, their phone may be offline, or they switched devices without deregistering.
2. Why is RCS stuck on Setting up or Verifying for days?
Verification needs both mobile data and working SMS. Check that Google Messages is the default SMS app, that you can send a plain text, and that your internet is stable. Then toggle RCS off for 24 hours before trying again, since carriers throttle repeated attempts.
3. Will turning RCS off delete my messages?
No. Your existing messages stay in Google Messages. Turning RCS off only changes how new messages send, falling back to SMS or MMS. Your chat history is untouched.
4. Does RCS work on iPhone?
Yes, since iOS 18, as long as your carrier supports it. Both sides need RCS active and a data connection. If the iPhone side shows plain bubbles with no typing indicators, RCS is not active on one end.
5. Why does RCS work on WiFi but not on mobile data?
The mobile data path may be blocked or misconfigured. On dual SIM phones, switch the data SIM, check APN settings with your carrier, and confirm mobile data works for other apps first.