Launch your CPS D868UV programming software, connect your radio and have your serial number and production date of the device displayed and stored. This information is displayed from the “Local Information” menu. If you wish, you could reprogram them later.(Extra this tutorial).
Save your codeplug by identifying the origin in its file name (example 868.rdt). You can reuse the exports of contacts, channels, zones….
You will need to purchase a ST-LINK USB programming interface. You can find them in the usual shops