hello
is new message for last build dev 202103080249
or
release:
Release 202103080249
message : Network Management
Modem(quectelqmi_0)
The modem show no carrier
help
The gsm internet stack is beeing reworked in Plasma Mobile these days.
1 Like
Always the message, but less recursive, despite the updates
The problem remains present even in unstable.
The problem is mainly that it eats the battery
Can you post your carrier you have? Also, that message is related to mobile data, it is WIP at the moment and does not affect calls or sms/text. Most likely introduced due to our work with Canonical and KDE e.V.:
Upstream work can be tracked here:
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hello,
reinstall: before sav: calendori/vard phonebook
indeed when I turn off mobile-data I no longer have an alert.
plasma-mobile : 20210317
stop mobile-data blocks the restart of the telephone link ;
On the other hand when you restart you have to do sudo systemctl restart ofonoctl
APN Internet
Nom : Free
APN : free
MCC : 208
MNC : 15
APN MMS
Nom : Free MMS
APN : mmsfree
MMSC : http://mms.free.fr
MCC : 208
MNC : 15
Type dāAPN : mms
Centre de message SMS
+33695000695
How to configure MMS .svp
Hello, the 2021/03/19 last update plasma-mobile.
I only have one message telling me a problem with the mode and it is only after a reboot, otherwise the recursive messages on disappeared.
Thatās nice to know. 
Sounds like this is known and being handled, but wanted to put forward my experience as well anyway.
Iām also getting this notification. Iām not 100% sure what the cause is yet as itās not all the time, but when it happens it tends to notify me every 5 minutes with the following:
Modem (quectelqmi_0)
The modem shows no carrier
Iām with Honest Mobile (UK), but Iām roaming and connecting to Proximus (Belgium) cell sites.
Edit
Iāve also noticed another issue in a similar area.
I get the following notification occasionally:
Modem (quectelqmi_0)
IP configuration was unavailable
When this occurs, I lose signal and must restart the phone again to get it back.
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Just got the new pinephone beta edition. Was getting āmodem shows no carrierā mobile data did not work. I could make phone calls okay.
Tried:
sudo systemctl status ofonoctl
and it reports
inactive (dead)
ande
Trying to online a modem that's not powered on
sudo systemctl restart ofonoctl
Getās me a promising:
Brought quectelqmi_0 online
But still I get no data/internet connectivity.
Any ideas?
(I hope this helps somebody.)
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Update on my side of things:
I contacted my phone service provider (Honest Mobile) linking them to my original comment. Just to ask if they had any thoughts or logs/diagnostics that mightāve hinted at a problem interfacing with the service from my phone/SIM.
Afraid I canāt see anything odd in the logs so suspect youāve a software issue but I will keep monitoring!
I expected that to be honest, but figured itād be good to check.
I have similar issues. I get the no carrier message too. I can make a phone call but no data.
And wifi goes down if the phone goes into power saving/sleep. Update downloads will come to a halt unless I keep the screen activeā¦ or kill upower and powerdevil.
So i just got a Pinephone last sunday. It of course had Manjaro plasma edition installed on it. I use Straight Talk in America for my phone service. I couldnāt get any 4G connection, but i could make calls and send text messages. There was nothing showing up in Access points under mobile settings. So i installed Manjaro Phosh, and i was able to put in my APN settings through their interface. I couldnāt figure out how to put in my APN address into the plasma settings.
The settings i use for my Straight Talk (SIM CARD For Verizon Phones)
Name = Tracfone
APN = tracfone.vzwentp
Thatās because itās not implemented yet. If your carrier needs you to put in the details, Plasma Mobile is not for you yet. 
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Yeah i had read their roadmap for plasma right after i had wrote this post lol.
hi . getting the same message , modem shows no carrier , here in Australia and with telstra . can make calls n text but thatās it
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In australia as well, but with optus (amaysim). I get a message from optus stating āa message you tried to send/recieve has failed because you donāt have creditā. Can switch to phosh and send texts fine. I also see the āThe modem shows no carrierā message