Switched SIM, cannot receive SMS messages!

Norman

I've been very frustrated switching SIM with my provider.
Went through a bunch of troubleshooting yesterday to get it to connect to the mobile network. It ended up connecting and giving me mobile data after I went to System -> Reset Options -> Reset Mobile Network settings.
Then I tried logging into an app that sent me an SMS message for verification, and I didn't receive it.
Upon testing further, this is what I found:

I can send myself SMS messages, but I won't receive them.
Others cannot send me SMS messages (it shows a sending error)
However, when I send them an SMS message they will receive it, at which point they can send an SMS back without getting an error, but I still don't receive it.
Services that try to send me an SMS won't be able to send it (they'll show an error).

I've reset mobile network settings, checked the the APN (its correct). Everything else works like sending/receiving calls, sending SMS, mobile data (4G/5G). My number shows up correctly in the SIM settings. I've restarted my phone and disabled/re-enabled my SIM.

Any other ideas I could try? Or do I have to contact my phone provider. I'm afraid they'll just tell me to not use GrapheneOS and blame it on that.

Norman

Called my provider and they say everything on their end looks good and that their policy says to send a new SIM if this happens...

Norman

After visiting my provider's store location and trying a different SIM, the issue wasn't resolved either. Restarting)/resetting network settings, using the default GOS messaging app or Google Messages doesn't work.
They escalated my issue to their service staff but I'm not very hopeful. If they can't resolve it I might need to re-flash Pixel OS to set up.

nandohyphen1

Norman https://discuss.grapheneos.org/d/27684-fresh-install-pixel-9-pro-no-inbound-sms-received-and-no-calls-out

See my post (@nandohyphen1) in that thread about deregistering your phone number from iMessage if you were a previous iPhone user

Norman

nandohyphen1 I am not a previous iPhone user, so that sadly does not apply to me.

nandohyphen1

Norman oh darn. I'm not sure what it could be. I'll see if I can find anything else, and maybe someone else with ideas to try will chime in

Norman

Update: it ended up being a carrier problem. After they escalated it and I was contacted by technical staff, they shortly resolved the issue and I received SMS messages again.

de0u

Norman Thanks for reporting back!