RCS Messages "Not Delivered" since iOS 26.1/26.2 update

I'm having issues with sending messages/text to an Android user (Samsung Galaxy) via RCS messaging. When I send a RCS text, I receive a "failed to deliver" notification and "not delivered" next to the text. However the receiver does receive the RCS text. I have read receipts on and it goes from "read at XX:XX" to "not delivered" a minute later.


This issue has been ongoing since the iOS 26.1 update on my iPhone 15 Pro. I have since updated to iOS 26.2 and still no resolution. I have tried:

  1. Force restarting - no change
  2. Turning iMessage on and off
  3. No inactive or duplicate SIM
  4. No VPN
  5. No issues with phone storage or notifications


These notifications are driving me crazy and I'm always second guessing if my message went through. I'm up for an upgrade soon and seriously considering switching to an Android after all this.

iPhone 15 Pro, iOS 26

Posted on Dec 16, 2025 10:58 AM

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Posted on Feb 10, 2026 2:31 PM

I had the same problem what ended up fixing it was having the person on android download google messages and enabling RCS messaging (they also have to set google messages as default messaging app in settings) < that part was crucial to getting it to work

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RCS Messages "Not Delivered" since iOS 26.1/26.2 update

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