How to use a router:
1. Push the rear cover down.
2. Insert the SIM card with the card core facing downwards
3. Insert the USB port into the power supply to obtain WiFi
4. Connect to WiFi and you can go online.
5. Connect to WIFI and open 192.168.43.1 in the browser to enter the background. The background can modify the WIFI name and password to add an APN.

Before purchasing, please read:
1. Before purchasing, you can check the frequency band in the link below to confirm if it meets local usage requirements
https://www.frequencycheck.com/countries
2. The frequency band used by the local country can be found in the following link
https://www.gsmarena.com/network-bands.php3?sCountry=IRAN
3. Frequency band query link used by local country operators
http://en.wikipedia.org/wiki/List_of_LTE_networks
 

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.