Redmi Note 9 Pro Call Problem

nasyek

I installed 16.04 stable on Red mi note 9 pro phone. But I can't call anyone on the phone. There is no problem with Android.
Thanks.

zubozrout

@nasyek Did you follow the instructions and flashed full Android 10 before installing Ubuntu Touch on the device? The Halium 10 port requires certain firmware version to work properly.

As mentioned here:

nasyek

@zubozrout Yes, I unlocked the phone first. Then I installed Android 10. I installed with the Ubuntu installer. It's ok including Waydroid but it doesn't make calls. I am not using Ubuntu Touch for the first time. I was using it on my Nexus 5 before. But because its battery is bad, I switched to Redmi 9 pro.

zubozrout

@nasyek Ok, that is interesting. I am using the same device and phone calls work just fine. Since you were using another UT device before I presume this is not because you'd be stuck on a carrier network only supporting VoLTE as there is no support for it atm :(.

If you have Telegram I presume you may want to ask on a device specific group if someone has any clue there: https://t.me/ut_miatoll

nasyek

@zubozrout I'm starting all over. Maybe the Android 10 I was using was not suitable. I'm downloading Türkiye image. Let's see. I don't use Telegram but I will install it for you. Let me try one more time. Maybe it comes from our country.
Thanks.

nasyek

@zubozrout I'm still having trouble searching. I said maybe it's from the SIM and I changed it. However, my problem persists. It does not call. I have no idea how can I fix it. I looked at the permissions and couldn't find any permissions. There are no other search apps in the package repository.
I cannot use the phone as it is. Maybe I'm in a fix mode with 20.04 version.

zubozrout

@nasyek Unfortunately I don't have a clue what could be happening there. It should work as there are people using this phone with success, myself included. I sometimes experience issues with calls not working properly (e.g. me not being able to initiate a call as you describe in your first post) but a restart always fixes this for me. Fortunately I don't really call that often.

I am also thinking 20.04 once available for this device could affect the stability of the phone stack, but as it doesn't work for you at all now on 16.04 it still seems like there is either something wrong with your setup or less likely the carrier network itself has some specifics making this phone not functional for calls.

smazenyTrilobit

hello there can you advise me please where I can locate telephony logs? my phone stopped showing me incoming call notifications ( and not put them in missing afterwards either ) and I seem to be too dumb to find it from code thanks!!

clyder

Hi,
I unlocked my Note 9 Pro (Global) yesterday after waiting 360h
All went fine and I installed 16.04 stable Ubuntu and booted it.

I have the same issue as above.
I cannot receieve or make calls. When I call from UT it just drops and say call ended. When I call from my other phone cant reach it.
I can receive SMS on UT with no problem but when I try to send any from ubuntu each time sending fails.

I had to downgrade the phone to Android 10 and the latest rom for global I could find was V12.0.3.0.QJZMIXM.

On another forum with unrelated issue for this phone it was mentioned that ubuntu works with V12.0.1.0.QJZEUXM EEA so I downloaded that one and 12.0.5.0 EEA (which is latest). I will try those later after work.

I dont use VoLTE since I read it is unsupported so that is not the issue.

If anyone has any idea what I can try or test I would be super gratefull.

Moem

@clyder said in Redmi Note 9 Pro Call Problem:

I dont use VoLTE since I read it is unsupported so that is not the issue.

So, just to be certain, are you sure your carrier still offers non-VoLTE calls?

beyolf

@clyder

Hello, there 2 potential problems which come in my mind. But first I want to mention that 16.04 is deprecated and won't have any updates and I would advice you to install focal 20.04 from the installer.

Potential problem 1- the calls problem could be caused by wrong android ROM. The joyeuse ROMs which we know that work well is 12.0.2.0.QJZMIXM
. So I would advice to try that ROM. If the problem continue to appear then check 2.
Potential problem 2 - some countries already work only with VoLTE if that's the case for you then calls won't work because UT do not support VoLTE yet.

If you need more help feel free to join the UT for miatoll telegram group and we will try to help you with your problem.

https://t.me/UTForMiatoll

Good luck!

DPITTI

When installing watch out if the Google account was logged in everything that has to do with Googel the switches to off. If all strands tear Twrp and install Lineage OS17.1 then simply install Ubuntu ready. The same with calls I have had with Android. This must be done by Xiaomi I think. Do not forget the Xiaomi account can also be deselected.

zubozrout

@beyolf Exatly as you say. I tried V12.0.3 initially and it didn't work for me fully so 12.0.2 is the correct one to go with.

clyder

Thanx everyone for responding. I just flashed V12.0.1.0.QJZEUXM eea and reinstalled UT 16.04 and meanwhile put 12.0.2 to download while waiting.
But with 12.0.1 now everything works.
Volte was not the issue because I am sure I cannot use it on my provider before requesting that service to be activated.

Anyway my Note 9 Pro can be called and call back. And sms works both ways.

So I guess V12.0.3.0.QJZMIXM was the problem.

@beyolf
Tomorrow I will try to install focal 20.04. Thank you for advice.
I am thinking of instaling 12.0.2 before since it will also probably work and it might contain some stuff that could resolve other potential issues.

Thanks everyone again for help. I will post here when I put 20.04.
Best regards to all!

beyolf

@clyder

I am glad that it worked for you.

Best of luck and let me know if you need help with focal.

clyder

@beyolf Finaly after a week of hell at work I found the time and I succsesfully installed focal 20.04.

I had issues installing it from windows since installer would stuck every time on booting to fastbootd, although phone was already in it,
but then tried in linux and all went fine.

So far all appears to be working. It appears that I cant sync Google Contacts, only calendar, but that is not really an issue since I wont be using this device for calls much and i can easily import contact via vcf card.

Thanx again for help

zubozrout

@clyder Awesome you have it working now. Btw, the Google contact sync is a known long standing UT issue, but not related to this device: https://gitlab.com/ubports/development/core/address-book-app/-/issues/201

beyolf

@clyder

The problem with windows is that when the phone goes into fastbootD the windows does not recognize it and you have to set up the driver from the device manager, then the windows will recognize the device and the UT installer will continue.

I am glad that you managed to install it from Linux and hope you enjoy.

13lenar

@nasyek whwen you typing *#06# you see IMEI?

Cubiking

Can someone please edit the documentation. It says we should use the latest android 10 rom but in fact that's obviously not true. Personally I am one of the victims