If Device Serial Number is not readable from the back side of MSO Device, please follow these steps

Download and Install RD service Drivers for Windows and Android

RD Service Driver
for Windows RD Service Driver
for Android

Download and Install RD service utility for Windows and Android

RD Service Utility
for Windows RD Service Utility
for Android

Plugin MSO 1300 device to available Standard USB/ Micro USB slot

Run RD service utility to fetch the Device Serial Number & Device Model