# Raspbian and PCI cellular **URL:** \ **Category:** balenaFin\ **Created:** [June 12, 2019, 1:27pm UTC](https://forums.balena.io/t/raspbian-and-pci-cellular/15223 "2019-06-12T13:27:24Z")\ **Posts on this page:** 1\ **Showing post:** 54
**Author:** ![Jgilbert](https://avatars.discourse-cdn.com/v4/letter/j/c89c15/32.png) [@Jgilbert](https://forums.balena.io/u/Jgilbert)\ **Post date:** [September 20, 2019, 1:12pm UTC](https://forums.balena.io/t/raspbian-and-pci-cellular/15223/54 "2019-09-20T13:12:40Z")
@xginn8 @imrehg - I followed the suggestions above. On initial installation of Raspbian (standard), I had both wireless and LAN connectivity. Once I did the “apt update” and “apt full upgrade”, I lost both of those connections, and was unable to install modemmanager (although Raspbian did recognize that there was a modem in place, and had an IP for it). A reboot fixed the ETH0 conenction, so I was able to continue somewhat. This is already noted here: [https://forums.balena.io/t/connect-to-wifi/4543](https://forums.balena.io/t/connect-to-wifi/4543) Reflashing with Raspbian (standard), and attempting to install modemmanager results in a number of errors, mostly because the latest version of modemmanager requires some of the updates noted above. I am able to bring up the modem, but I can’t see the SIM card at all (“unknown”). The update issue is a real problem right now. I am going to try again with Raspbian Lite, and go pure command line. Hopefully the updates there will not lose the networking connections. More to follow. John --- _[View the full topic](https://forums.balena.io/t/raspbian-and-pci-cellular/15223)._