In some cases, you may need to set up an APN (Access Point Name) for your modem. suika fruit game

To convert your E3131 USB modem from HiLink mode to modem mode, you can try using usb_modeswitch. slither io

The E3372h-320 is a 4G LTE cellular modem that supports 2G, 3G and 4G bands. Sometimes, this modem can switch operations mapquest directions from 4G to 3G or 2G.