There something like a pin inside the router that was burned and it was difficult to put in the SIM. I called my neighbour who is IT technician in insert help to insert the SIM but he also noticed that one pin was broken inside, so no matter how we put the SIM, it’s shows on LD screen that SIM absent. I couldn’t tried it when I received as I was waiting for my broadband contact to end, for me use it on my new broadband contract. But now big problem when I wanted to insert SIM in your CPR903-2 Routter.
Good routers. Easy to use.