Mobian on Librem 5

I have been out of the game for awhile. Did you install the Mobian stable or weekly found here:

I ask because the last stable Mobian image appears to be dated 6/6/2023. Maybe it doesn’t matter. The Mobian website has always been difficult for me to follow.

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The mobian-librem5-phosh-12.0.img.gz image is the correct one.

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I find that concerning. Before my Pinephone went Tango-Uniform, IIRC, there were updates at least four times per week and major version a couple of times in less than two years. I suppose it really doesn’t matter if it works, but I want a phone distro to update like Linux Mint.

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The lack of a new release doesn’t mean no updates. See: Debian.

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I’m not able to get VoLTE working on BSNL (India) network. bm818-tool to enable volte seems broken too. VoLTE does not work with BSNL on trixie (#13) · Issues · Mobian Team / devices / librem5-support · GitLab

Anyone got volte working with trixie ?

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Sure, but… different modem (https://forums.puri.sm/t/librem5-5g-is-here-working-alternative-modem-setup-tested-successfully). I’ve also noticed that not only is there finicky with different srevice providers / networks but apparently some prepaid and postpaid cards from same company behave differently with different modems (data only or if they get calling too).

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VoLTE has nothing to do with the host’s operating system.

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At least the tool to check/enable volte is broken on trixie. So there is easy way to check/confirm if volte is enabled in the modem in trixie.

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For bm818 it seems to be AT+BMRAT command (via a suitable method). Volte would return something about LTE if it’s capable and connected to do so, If memory serves.

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Returns, during a call,

+BMRAT: FDD LTE

if VoLTE is working.

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This is just a coincidence thrown in for humor.

In a wargame group I’m in, Princess “Trixie” is the head of state for a fictional country called Saxe Burlap, maybe I should introduce her to Prince VoLTE of the Empire of Ikea? Then ZoLTE can “start to work” on Trixie with his charming attitude.

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It looks like bm818-tool needs to be run as root (with xhost + command to give display permission) since chat command is in /usr/sbin which is not in the PATH for normal user.

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When running bm818-tool as root, I get the same output, but I can’t make calls when in 4G (I have to manually switch to 2G only) and incoming calls automatically switch to 2.5G.

What does CBS means in bm818-tool ? I could not find anything related searching online.

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Also the incoming call is coming as greyed out (I can hear it ring), but if I lock the screen and press power button, I can see the option to take call in lock screen.

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Used for emergency alerts: Cell Broadcast - Wikipedia

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For the record, it isn’t useful unless you know what and why you’re doing.

If you can’t make calls, you can’t get the same output during a call.

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You will find half a dozen mentions in this forum though. However amarok and dos covered it. Best to ignore CBS completely for now, particularly as it isn’t relevant to VoLTE.

Did you reboot your phone after successfully running the bm818-tool? I believe that that is effectively a requirement.

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Power cycling the modem is enough :wink:

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I should have been clearer, this is the output when phosh shows 4G. During outgoing call (after switching to 2G), it showed EDGE instead of LTE and during incoming call it showed GPRS. So VoLTE is not active. I have it ticked in bm818-tool and I did reboot / power cycle multiple times.

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Now we need to find a way to launch it as root from home screen bm818-tool volte check does not work on mobian trixie (#9) · Issues · Librem5 / bm818-tools · GitLab

I figured how to launch it from terminal with pkexec, but adding this to .desktop did not work.

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