The firmware is the operating system that resides inside the motherboard of your machine and controls all operations as well as the interactions between the motherboard and the host computer.
In some circumstances, a firmware update is required to improve the Ortur machine performance or fix discovered issues. In some less common situations, a firmware upgrade might be required to clear issues caused by user error.
The simplest way to identify your Ortur Laser Master 2 PRO S2 is by connecting to one of the softwares in your computer. Once connection is done, where it says “type command here” or “type gcode here” the following code: $i following with press Enter
The output will indicate the OLF version (OLF=Ortur Laser Firmware)
If your OLF is 180 or higher then your machine is a S2 version. Also your Model will be identified as “Ortur Laser Master 2 Pro S2“