1. Please make sure you're connected to Nommi Wi-Fi (Open Nommi app > go to Main page «Nommi» > click on Connect  OR connect to Nommi via Wi-Fi settings of your device)

2. Open Nommi app > Profile page > My device >  SIM settings > SIM mode\


OR

Copy 192.168.0.1 (or 192.168.173.1
 to your browser, open Settings (login: admin password:admin) > System > Reboot > Select SIM mode > click Reboot.