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This guide assumes that you have already installed Linux on your Cosmo using the [[Linux for Cosmo]] guide.
The current Debian/KDE image uses NetworkManager to handle WIFI and mobile data connections, but mobile data is not working correctly with Cosmo. In order to enable mobile data we have to remove NetworkManager and use connman instead. Connman is an alternative connection manager software, which will be used to handle both mobile data and WIFI connection.
====Install connman====
On your Cosmo, open a terminal (Menu -> Applications -> System -> Terminal)
Type the following commands to install connman:
<code>sudo apt install connman cmst mobile-broadband-provider-info ofono-scripts</code><code></code><br /><code>sudo apt remove network-manager plasma-nm</code><br /><code>sudo reboot</code>
====Enable Roaming====
Roaming needs to be explicitly enabled beforehand if needed. To enable roaming type this command in a terminal:
<code>/usr/share/ofono/scripts/set-roaming-allowed</code>
====Configure APN====
The next step is to configure the APN for your specific network operator, which can usually be found online or by contacting your operator.
Usually, this will simply involve setting up the network's access point name through the set-context-property. For example, for the Three UK network we have to setup the access point name "three.co.uk":
<code> /usr/share/ofono/scripts/set-context-property 0 AccessPointName three.co.uk</code>
For Telenor Hungary, the access point name is simply "online", so the command would be:
<code>/usr/share/ofono/scripts/set-context-property 0 AccessPointName online</code>
Finally, we need to activate the connection using the following command:
<code>/usr/share/ofono/scripts/activate-context 1</code>
Your mobile connection should now be active. You can use the connman system tray application (cstm) to check the status of the network connection.
You can also run cstm at startup by...
What about SIM1/SIM2?
Note that in some cases a working namserver might not be populated automatically. In this case you can set one using the following command:
