Hello, I ordered a router, but the seller is unresponsive. The router model is mr600 v3. When I install the SIM card, I get a "No Service" error. I tried updating the router software, but to no avail. I changed the SIM card, but to no avail. I am in Iraq. I hope for a quick solution. For your information, I tried the solutions suggested via email, but they did not work. I will attach some pictures. With the router information