PinePhone as Modem

Configure Mobile Data

Go to Settings » Mobile » Mobile Data » Access Points » [+] button

Add network name and APN, e.g. Name: 3 internet APN:

Sharing 4G with Hotspot

Run and create new hotspot connections with SSID `Pinephone` and Password `HotspotPassword`:

sudo nmcli device wifi hotspot ifname wlan0 con-name Hotspot ssid Pinephone  password HotspotPassword

Stop the hotspot from NetworkManager. To restart your hotspot you can use the 3 dots menu “Connect to hidden network”

Sharing internet from your PC via USB

Set up ip-forwarding on your PC and configure your USB ethernet device's IP:

echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward
sudo iptables -A POSTROUTING -t nat  -s -j MASQUERADE
sudo iptables -P FORWARD ACCEPT
sudo ip addr add dev $USB_INTERFACE

where you should replace $USB_INTERFACE by the name of your interface (e.g enp7s0u1c2 or usb0)

You need to install pinephone-devtools on your phone and set the correct DNS server in /etc/resolv.conf:

sudo apt install pinephone-devtools
cat << EOF | sudo tee /etc/resolv.conf
nameserver $LOCAL_DNS_IP

where you should replace $LOCAL_DOMAIN by your local domain (e.g local) and $LOCAL_DNS_IP by a valid DNS server (e.g or

Note: If you only just installed pinephone-devtools you might need to restart the PinePhone once. Since the pinephone-devtools also enable SSH access to the phone it is strongly recommended to change your passwords first.

Network overlap with

When connecting a Mobian device to a computer via USB-C, Mobian is configured to use the IP address, in the subnet This can cause an issue if Mobian is also connected to a wifi network which utilizes a subnet within the same subnet. The configuration of the USB connection could be changed to use a different or smaller subnet, or a more specific route can be configured for the wifi connection to account for this special case. Here is how to add a persistent more specific route.

  1. Connect the Mobian device via USB-C to a computer, and SSH into it (see Connect via USB-C and SSH)
  2. Connect the Mobian device to the desired wifi network
  3. Identify the name of the wifi network in Network Manager
    • $ nmcli connection
      NAME               UUID                                  TYPE      DEVICE 
      USB                a3ee13d7-85ce-4386-8ba9-419a67309692  ethernet  usb0   
      wifi-network-name  bfe0a288-f193-4eeb-ba00-7d6f15ec27f6  wifi      wlan0
  4. Add a more specific route for the destination network, using the wifi network's name and gateway IP address
    • $ sudo nmcli connection modify wifi-network-name +ipv4.routes "" +ipv4.route-metric 25
    • - This is the destination network, swap in whatever the desired network is
    • - This is the gateway to use for that network, in this case it's the wifi network's gateway.
    • wifi-network-name - This is the name of the wifi network.
  5. Reload the connection configuration
    • $ sudo nmcli connection reload wifi-network-name
  6. It should now be possible to route packets to the destination network successfully over the wifi connection, instead of using the USB-C network connection.
    • The route table should look something similar to this:
    • $ ip route
      default via dev wlan0 proto dhcp metric 25 dev usb0 proto kernel scope link src metric 25 via dev wlan0 proto static metric 25 dev wlan0 proto kernel scope link src metric 25