i got a solution for u 1- just install the software of the modem ( which is automatically. Anyhow, ZTE MF820 100Mbps surfstick can let you access the internet with high speed and no any delay. SOURCE: I can not find the driver of zte usb modem 3197 cdma 1x. From the characters, ZTE MF820 4G Surfstick has similar function as HUAWEI E398 LTE rotate USB modem, named also Vodafine K5005 USB stick. Note: If connected to PC through USB cable then open Computer > Virtual CD-ROM and install in PC, if not already installed.
With its rotating appearance and long continuous work, ZTE MF820 100Mbps USB Surfstick was born to be a innovation of LTE dongle, compared with other ZTE 4G USB modems, such as ZTE MF680 DC-HSPA+ 42Mbps 3G USB Modem and ZTE MF668 21Mbps 3G USB dongle. Eject the ZTE MF820D modem from PC, if already connected.
It's the best 100Mbps modem for 4G LTE band 1800Mhz. The NEW 100Mbps USB dongle ZTE MF820 4G LTE modem supports LTE frequencies 1800/2100/2600MHz, but it is backward compatible and can also be used on DC-HSPA+ 3G (900/2100MHz) and 2G where there is no 4G network coverage. Besides, the ZTE MF820 4G 100mbps LTE modem offer functionality with the latest Windows and MAC operating systems. ZTE MF820 100Mbps 4G USB Modem, with bandwidths of up to 20 MHz, are capable of download/upload speeds up to 100/50 Mbps, under 3G network HSPA+ 42/11 Mbps downlink/uplink rates.
