Most ZLT flashing tools and drivers are built exclusively for Windows OS.
(often branded by providers like MTN or SLT) is a 4G LTE indoor router designed for high-speed home connectivity. Updating or changing its firmware is typically done to fix connectivity issues, "openline" the device to work with other SIM cards, or access advanced settings. Firmware Basics & Downloads
The latest ZLT S20 firmware versions offer several exciting features and improvements, including:
ZLT S20 Firmware: The Complete Guide to Updates, Features, and Optimization