Open a web browser and enter the default gateway IP (usually 192.168.0.1 or 192.168.1.1 ).
Navigate to or Maintenance to find the "Software Version" or "Firmware Version". Steps to Update ZLT S20 Firmware zlt s20 firmware
Never run executable files claiming to be firmware. Legitimate firmware is .bin , .pkg , or .img . An .exe files is likely malware. Open a web browser and enter the default