5l4rtysCell , via OnePlus 9 Pro , Dec 7, 2021 : Known bug unfortunately. OnePlus Updater is suggesting wait for an update, or if you have problems roll-back to previous version.
Swejuggalo , via OnePlus 9 Pro Stellar Black , Dec 7, 2021 : What exact model number does this happen to? And what regional software on it?
Anonymouze , Dec 7, 2021 : I'm on Vodafone Germany, not receiving all calls and placing calls to T-mobile Germany also impossible. That was from beta 1 and beta 2, I didn't installed the latest updates. I'm too tired of using msm, just want working mobile service.
B_Wrath , Dec 7, 2021 : Well. That might be the problem. EU didn't have any Open Beta build. You might have installed a build of other region which might be causing the issue.
Anonymouze , Dec 7, 2021 : ONEPLUS released Stable A12 for EU model yesterday. There is a info that 5g and mobile service might not work. And that's the case. Why stable? It's a joke
B_Wrath , Dec 7, 2021 : OnePlus didn't release any A12 build for EU region. As mentioned in the opening post in the official announcement thread. Where did you get the stable build from?
Anonymouze , Dec 7, 2021 : Okay you got me, but it is still wired that there its not working properly. What about people traveling to Germany from an Stable COS12 Build CHinese Edition 9 Pro
Anonymouze , Dec 7, 2021 : Is anyone currently working on it? It would be great to know that OnePlus is aware and working on a fix. Everyone with problems would feel much better.
Insane_Butcher , via OnePlus 9 Pro , Dec 7, 2021 : Same thing happened to me. I have Indian version of the smartphone. After updating to Oxygen OS 12 I have lost my carrier coverage. I have tried the SIM card in a different phone, I did network reset and reloaded the phone - nothing helped. I updated via Oxygen Updater and it automatically identifies which version do I have so I installed the right one.
jy7347 , Feb 19, 2022 : did the C44 update fix anyone's problem? my network issues seem to start AFTER C44 update :/ anyways, i've filed an official compliant with Oneplus, they just replied me on email, just replied them and lets see what they say. my complaint Case ID: 220218-009152
