Troubleshooting; About The Device And Services - Samsung GT-B3730 User Manual

troubleshooting

If you are having trouble with your modem, try these
troubleshooting procedures before contacting a service
professional.

About the device and services

What is 4G?
4G (for "4th generation") is the radio technologies designed to
increase the capacity and speed of mobile telephone networks.
Where the current generation of mobile telecommunication
networks are collectively known as 3G (for "3rd generation").
Will my modem work without a SIM card?
No. You must insert a SIM card to use the modem.
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