You may still be able to download older versions like 2.21 from myWorld, but you won’t be able to activate them without a valid license key or USB dongle.
Select the matching COM port number assigned to your USB adapter by Windows Device Manager (e.g., COM3). Baud Rate: Typically 9600 or 19200. Data Bits: 8 Stop Bits: 1 Parity: None 2. Download Data from Total Station to PC Connect the cable to the instrument and the computer. Turn on the Total Station. Open the Data Exchange Manager in the software. leica survey office 2.21 english download
Download the installation package (typically named LSO_221.zip or Setup.exe ). You may still be able to download older versions like 2