You are stuck and the Link Advanced installation is incomplete because you are getting the message "No GSM mobile network found."
The GSM installation is unable to find a signal. First, make sure the installation is taking place in a country covered by the GSM network:
How to confirm my installation by subscribing to GSM service
If the country does appear on the list, you are probably located in a dead zone.
In the absence of GSM network coverage, the device must be installed and operated via Wi-Fi: