Calls not ringing, fixed?

Ducter

I've been trying to use GrapheneOS on my Pixel 8 Pro for quite some time now. It's always been unsuccessful as the phone would not ring when I'd receive an incoming call. There'd be no notification at all. Today I decided to flash the latest Google Stock firmware and then install graphene again to give it another try. Low and behold, everything is working as it should. I'm not sure if others that have had this issue are still having it or not, but I would recommend flashing stock Google then GrapheneOS, worked for me, finally.

GrapheneOS

Ducter This is an issue with your carrier, not GrapheneOS. It sounds like they didn't provision it properly last time. You do not need to flash the stock OS before GrapheneOS.

Ducter

GrapheneOS there's a large thread where multiple people have this issue, various carriers, models etc. What I can say is until whatever update happened very recently be it Google or GrapheneOS, the phone would not ring. Worked fine on stock, lineage and calyx but not graphene.

newsage

I'll probably give this a try. My phone recently stopped making calls as well.

jasondaigo

What is the technical explanation that installing Android again and than graphene afterwards would make a difference?

Ducter

jasondaigo truthfully, I don't know. What I do know is it's recommended to flash from the latest stock build. I do not know if every partition gets flashed with graphene, or radios, modems etc. When I first got my phone, it ran graphene perfectly fine but I went back to stock for a bit then trying to return to graphene the phone wouldn't ring. What changed? Updates I'm guessing. Some on the team here have said it was an upstream issue and nothing to do with graphene yet as I've said my phone worked fine on stock, lineage and calyx just not graphene...

I've been flashing phones since the T-Mobile g1, the very first android handset, every dev says clean install from stock so that's what I've always done. Is it needed? I can't say but what I can say if graphene says the issue wasn't with them but now my phone works, something fixed it.

RandomlyGeneratedName1

I am T-Mobile customer and:

with 2G disabled I cannot call
with only LTE mode I cannot call

I do not live in forest. I live in big city. It is interesting. I had to play with settings little bit to make calls to work.

matchboxbananasynergy

RandomlyGeneratedName1 That means that VoLTE is not enabled for you. You should speak with your carrier.

Ducter

RandomlyGeneratedName1 T-Mobile shut down their 2g some time ago. I've never had to call a carrier after flashing a ROM.

de0u

RandomlyGeneratedName1 I am T-Mobile customer and:

with 2G disabled I cannot call

with only LTE mode I cannot call

Sometimes if one has an old SIM card getting the carrier to issue a new one helps with weird situations.

RandomlyGeneratedName1

I can speak to them. They will not speak to me :). In my country they do not care much. When I get bored I will annoy them.

de0u

Ducter I've never had to call a carrier after flashing a ROM.

In life, not all experiences are equally distributed, especially not rare ones.

RandomlyGeneratedName1

Totally new SIM :)