Modem Dead?

[dcinoz]

Hey all,

     I have been using my PinePhone quite consistently now for months now and have been enjoying the experience.  I had to run out and buy a cheap flip phone though out of necessity because it seems my modem may have died.

I have tried resetting the device, even letting it sit off for a while, and messing with the physical switches, but to no avail.  The cellular icon is grayed out and has a slash through it, and the mobile options have completely disappeared from settings.

Has anyone had this issue, and is there a fix, or do I need a new mobo?

grimlok

What distro have you been using? Stable or unstable branch? Done any updates before it disappeared?
Have you tried another distro (SD card)?

As zetabeta indicated, hopefully it is showing in lsusb.

If it is, have you checked logs?
sudo journalctl -b | grep modem
sudo journalctl -b | grep modemmanager
sudo journalctl -b | grep eg25-manager

If showing in lsusb and distro is using mmcli, turn it on
mmcli -m any -e
check eg with
mmcli -m any --messaging-list-sms
mmcli -m any --command='AT+QCFG="ims"'

Telephony is broken for me in current Plasma Mobile stable and unstable since the switch to ModemManager, though it never really worked that with with ofono before. I imagine you'd see the modem in lsusb though.
eg25-manager (if used) controls the modem too so try restarting it / checking logs:
sudo systemctl restart eg25-manager

I remember the modem vanishing on Mobian (probably doesn't apply here but you never know) after updates to eg25-manager. I was using my modified config file and have placed it in /etc/eg25-manager to avoid it being changed after updates. But the original file had changed and was no longer compatible with eg25-manager (checked with diff). After changing the new config file as required and rebooting / restarting eg25-manager, everything worked again.

Not sure any of this will help, the eg25-manager config file thing did make the modem disappear for me, to my surprise.
Hope others may be able to help if it doesn't show on lsusb.