Waveshare SIM7600 Series - 4 G Connecting Process; Windows PC 4 G Connection; PC Hardware Setup; GPS Version Requirement

 Plug the 4G SIM card and LOCK the SIM card slot according to the arrow, then
close the buckle.
 Connect the USB port of the DONGLE to your PC. Raspberry Pi or other devices
 If you want to use GPS, please make sure that the DONGLE you bought is the
SIM7600G-H version. You should set the receiver on the outside for GPS testing.
4G Connecting
Networking in Windows PC
1. Hardware Connection