Why do my texts keep switching between RCS and SMS on iPhone?

I’m trying to talk to someone over text who has an android, but every text i send is being sent as SMS and all of theirs are being sent as RCS. It keeps flipping back and forth and it’s annoying.




[Re-Titled by Moderator]

iPhone 11, iOS 18

Posted on Nov 29, 2024 03:22 PM

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Question marked as Top-ranking reply

Posted on May 13, 2025 08:35 PM

You are going to want to turn off RCS in your Messages settings, then turn on Airplane mode. After that, restart your phone. Then go back in, enable the RCS setting and THEN turn off Airplane mode and it should work.


This is assuming you have the bug where your contact’s messages come through as RCS, but yours still come through as SMS. And make sure they are the one who sent the most recent message, so the latest chat came through as RCS.


If you’re not already receiving as RCS, I don’t know if this will work. Apple pls fix

105 replies

Mar 4, 2025 07:47 PM in response to GageBenway

Notice how, on this site hosted by Apple, no help or suggestions are given by anyone from Apple. I think that's pretty lame. Just like their half-hearted support of RCS -- which is probably only out of fear that the EU was about to make them adopt it. I'm here because I can't tell who is sending via SMS and who is sending via RCS on the macOS Messages 'app.' Why is that?

Mar 5, 2025 11:25 AM in response to monist

monist wrote:

Notice how, on this site hosted by Apple, no help or suggestions are given by anyone from Apple.

This is not Apple Support. This is a user-to-user forum, something that was explained in the Terms of Use we all agreed to when we registered. Apple's participation here is largely limited to making sure we all behave.


If you want help from Apple, use the Support link at the bottom left of every page of this forum.

Mar 5, 2025 11:45 AM in response to monist

monist wrote:

Notice how, on this site hosted by Apple, no help or suggestions are given by anyone from Apple. I think that's pretty lame.

I hope this is enlightening:


Like just about every large company Apple has both formal technical support and an area where users can discuss technical issues with other users. And, like all of those other companies, Apple does not participate in any significant way in the user-to-user discussions, as that might inhibit the free flow of ideas. The formal name of this area is Apple Support Communities. The “Communities” should be a giveaway that this isn’t a formal support site. And if that doesn’t, the site itself is https://discussions.apple.com. The “discussions” is another giveaway.


Apple’s formal support can be reached several ways

  • You can provide feedback to Apple at→ Product Feedback - Apple where your issue or suggestion will be recorded, tracked and matched with similar reports, but you will not get a reply



For personalized support

Best way: 

  • Install the Apple Support app on your iPhone or iPad - you can contact support directly from the app, and the tech will have (with your permission) access to diagnostic data on your device



Other options:

(Note that both of the above have options to receive a callback or chat)



About the only communications methods not used by Apple support is inbound email or text, probably because the volume would be overwhelming, and separating the wheat from the chaff (or, to us engineers, a poor signal to noise ratio) would be almost impossible. 

Mar 5, 2025 12:06 PM in response to monist

monist wrote:

Just like their half-hearted support of RCS -- which is probably only out of fear that the EU was about to make them adopt it. I'm here because I can't tell who is sending via SMS and who is sending via RCS on the macOS Messages 'app.' Why is that?

What is half-hearted? iPhones fully support RCS. Any time you send a message to another device that supports RCS it will use RCS for delivery. Any time someone sends an RCS message to you it will be delivered to an iPhone using RCS. There are FOUR players in RCS messaging: The sending device, the receiving device, and the sending cellular network carrier and the receiving network carrier. For RCS to work all 4 need to support RCS.


I can tell with each message; right below each message in the reply box it will say how it was delivered: iMessage, SMS, MMS or RCS. For example, see these screenshots from the Messages app on my MBP (the same on an iPhone or iPad):





[UPDATE from 3 to 4 players]

Mar 5, 2025 03:22 PM in response to Lawrence Finch

It's half hearted in that so many of us had (and still have) issues getting it working with contacts that previously worked fine in iOS. That Apple chose to not make it encrypted when the option was there. That discussion forums like this and other online communities are the only place customers can get real world help from other users with fixes like what so many of us have posted already.

We've been submitting feedback through the link that keeps getting posted here and after each major ios 18 update nothing seems to improve with RCS, so this is why we are discouraged that our feedback and requests have gone ignored.

Mar 5, 2025 05:31 PM in response to Lawrence Finch

I've seen other companies where, if there is an issue in the discussion groups, they comment. Apple 'Product Feedback' is useless -- may as well be a black hole. Individual support makes no sense if a solution is not disseminated to a wider group of people having the same problem: witness this thread. Even if there is no solution, post that here and say why. Then Apple wouldn't have to have as many employees servicing the people who contact them for 'support.' So, I find your answer, and Apple's custodianship or this forum, unsatisfactory. They certainly take the time to censor these forums on occasion; maybe while they're reading it, they could pass along a summary to the appropriate engineering group for a brief comment/reply.

Mar 5, 2025 05:49 PM in response to monist

monist wrote:

I've seen other companies where, if there is an issue in the discussion groups, they comment. Apple 'Product Feedback' is useless -- may as well be a black hole. Individual support makes no sense if a solution is not disseminated to a wider group of people having the same problem: witness this thread. Even if there is no solution, post that here and say why. Then Apple wouldn't have to have as many employees servicing the people who contact them for 'support.' So, I find your answer, and Apple's custodianship or this forum, unsatisfactory. They certainly take the time to censor these forums on occasion; maybe while they're reading it, they could pass along a summary to the appropriate engineering group for a brief comment/reply.

My answer is FACT. If you don’t like FACTs, I am sorry.


And Apple’s Feedback has brought about widely requested changes many times; in fact, many of the enhancements in iOS 18 started as user requests. With 2 billion customers feedback from one is not going to move them; if RCS is really an issue to thousands of users, and they tell Apple, it can make a difference.


The Apple moderators don’t routinely read the forums, there aren’t enough of them to police ASC, which is reportedly the world’s largest user support forum. They will generally only review a post that has been reported by a user, and then only remove it if the post violates the terms of use of ASC.


The reason Apple (and other companies) have user forums is legal liability; Apple employees can only publish information that has been vetted by Apple Legal, so someone identifiable as an employee can’t really answer a general question. The Terms of Use have a disclaimer that posts are the opinions of individuals, and do not speak for Apple.


And if anyone reports your recent post (it won’t be me) there’s a chance it will be removed because it isn’t a technical question or a technical answer, as explained in the ToU (did you read it, BTW), and this is a user-to-user Technical Support forum.

Mar 19, 2025 10:45 AM in response to GageBenway

I had the same issue my girlfriend had a iPhone then switched to Android my iPhone 15 was sending RCS fine until it kept sending as SMS


If you have dual SIM have BOTH ON WHILE RCS IS ACTIVATING AFTER NETWORK RESET I have a T-Mobile SIM for backup and Verizon as Primary make sure your second SIM is the one using for Cellular


Before you reset network iCloud backs up any saved Bluetooth and Wi-Fi networks

Make sure your second line is used for data

THEN reset network

Why do my texts keep switching between RCS and SMS on iPhone?

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