@notworkingsim: When you insert the SIM, is it clicking into place? Have you tried the SIM2 slot to see if this works for you? For a visual guide on how to correctly insert the SIM, please refer to page 21 of the user manual via the link below, or check page 23 for a step by step guide.
If the SIM has been inserted correctly, please head to Settings > Connections > SIM manager, and make sure that your SIM is recognised, and toggled on. Now, head to Settings > Connections > Mobile networks > Access point names, and check to make sure that your network plan is registered here. If it isn't, tap the 3 dots in the top right > Reset to default, to see if this helps. Tap the Back button > Network operators > Select automatically, and make sure that this is toggled on.
