Even with a new firmware, the default satellite list might be generic. Download a custom satellite.xml file for your region (e.g., Europe, MENA, or Americas) and load it via USB or SD card.

I often hear technicians say: "If it ain't broke, don't fix it." But with satellite meters, that logic can backfire. Here is why you should install the new firmware:

Unlike older satellite meters that used proprietary closed systems, the ST5150 runs on an Android operating system. New firmware updates often include:

The progress bar will go from 0% to 100%. This takes about 2–3 minutes. The screen may flicker – this is normal.

You will see something like S/W Version: V1.2.3 or Build Date: 2022/06/15 . Write this down. If your version is older than two years, it is time to search for an update.