Mobile connection used to work but is now broken
My Jolla used to work fine, but now the telephony is broken. I've been running 2.0.0.10 (Saimaa) since it was released.
A few weeks ago, I started noticing that the mobile connection (not just data, everything!) drops out periodically when there is poor wifi signal. I was fine with that, because I've seen that other people had the same bug and I could work around it by turning the wifi off to get a signal.
Today, my mobile connection went completely (I can't call/text, no 2g/3g/4g) and it hasn't come back. Wifi works fine, and so does bluetooth.
I'm not sure if the two issues are related or not.
I have tried deleting/moving the connman settings as described here: https://together.jolla.com/question/52439/networking-not-available/?sort=votes&page=1 ...but I'm stuck with the same behaviour.
CSD tool says "network status: offline"
Here's what I'm getting from ofono:
nemo ~ $ sudo systemctl restart ofono nemo ~ $ sudo systemctl status ofono -l ofono.service - Telephony service Loaded: loaded (/lib/systemd/system/ofono.service; disabled) Active: active (running) since Wed 2015-12-30 20:28:31 GMT; 35s ago Main PID: 4594 (ofonod) CGroup: /system.slice/ofono.service └─4594 /usr/sbin/ofonod -n --nobacktrace --noplugin=he910,dun_gw_bluez5,hfp_bluez5,hfp_ag_bluez5,cdma_provision,bluez5,isimodem,n900,u8500,qmimodem,gobi,cdmamodem,isiusb,nwmodem,ztemodem,iceramodem,huaweimodem,calypsomodem,swmodem,mbmmodem,hsomodem,ifxmodem,stemodem,dunmodem,hfpmodem,speedupmodem,phonesim,telitmodem Dec 30 20:28:32 Jolla ofonod[4594]: ril_set_online: RIL_REQUEST_RADIO_POWER 1 Dec 30 20:28:32 Jolla ofonod[4594]: data reg status probed 2 Dec 30 20:28:32 Jolla ofonod[4594]: Unable to read waiting messages numbers from SIM Dec 30 20:28:32 Jolla ofonod[4594]: Unable to read mailbox identifies from SIM Dec 30 20:28:34 Jolla ofonod[4594]: Requested file structure differs from SIM: 6fb7 Dec 30 20:28:34 Jolla ofonod[4594]: voice registration changes 3 (-1) Dec 30 20:28:34 Jolla ofonod[4594]: nw select automatic Dec 30 20:28:39 Jolla ofonod[4594]: export_entries_one_storage_cb with ME failed Dec 30 20:28:42 Jolla ofonod[4594]: data reg changes 0 (2), attached 0 Dec 30 20:28:42 Jolla ofonod[4594]: voice registration changes 2 (3)
Is this a problem with the sim card, or could it be a software issue?