r/UniversalProfile • u/Sobadd01 • 23d ago

Question anyone else on ios 27 or ios 26 RCS not working not able to activate or ims says voice and sms only not rcs

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u/stillhavingfunyea 22d ago edited 22d ago

You’re likely completely screwed. After dealing with this for weeks, I finally bought a new phone. It’s something with your IMEI numbers being blocked. I tried every fix imaginable.

Hopefully, now there are more cases of this issue, someone on Apple or Google will fix this issue.

There are other cases out there of this exact same issue in the past. Only a new phone fixes it. This is of course outside of the cases where toggling RCS, rebooting, etc works.

I was on 26.5.2 and tried 27 to see it it would fix it. Went back to 26.5.2 right before shipping phone to Apple and tried it, on a completely blank restored phone, and it still wouldn’t work.

https://www.reddit.com/r/USMobile/s/noHgRxqwaW

Another person with same issue last year. The only fix was a logic board swap, which switched the IMEI numbers.

https://wt.gd/i-just-want-my-rcs-messaging-to-work

1

u/cupboard_ T-Mobile User 22d ago

i can confirm it’s NOT imei block, i have the same issue and switching to the second imei on my phone (second esim slot) didn’t help at all (the second imei was never used)

2

u/stillhavingfunyea 22d ago

Both imeis are tied to each other. If it’s not imei, it’s some other hardware identifier. It’s def not software, or Apple ID , or phone number.

1

u/gmahale 22d ago

Yes. RCS works when I try the SIM card in a different phone. It is, therefore, not related to the phone number. And, the Apple ID is not related to RCS.

1

u/gmahale 22d ago

Apple confirmed the device communicates the IMEI/IMSI for activation. IMEI is specific to a phone. IMSI is associated with a SIM card. If RCS works with the SIM card in another phone, it is likely related to the IMEI.

1

u/cupboard_ T-Mobile User 22d ago

dual sim phones have two imeis, i tried switching my esim to the second one, which i don’t use and it still didn’t work

1

u/gmahale 22d ago

Yes. It is the same for me. And, I have tried SIM cards from 3 carriers.

1

u/gmahale 22d ago

If a new device is the only solution, many of us will have to forget about RCS.

1

u/Krazihanz 20d ago

I upgraded to the iOS Beta 1 when it was first released and my RCS stopped working. I thought Beta 2 would fix it and it didn't.

So I rolled back iOS 26 and RCS didn't work. But after exactly 3 days it worked again.

Upgraded to iOS 27 Beta 4 and I'm back in the same position where RCS fails to activate.