To determine the software version that your Midas DL252 is running, you will need a computer and a standard ethernet cable. The computer should not be connected to any network and the Wi-Fi should be off. Change the IP address of the computer to with a subnet mask of one end of the ethernet cable into the computer and the other end into the Ethernet Control Port on the rear of the DL252.  Power up the DL252. When fully booted, open a web browser on the computer, Chrome or Safari are probably best. In the address line, type 192.168.40.X.  The X is the ID number of the DL252. Press enter, and a web page for the DL252 will open. Click on Version Information and the Software Version the unit is running will be displayed.Do not attempt to click on any of the other options.