After seeing your note about the correct 3.1.0 firmware, I downloaded it again, checked the MD5 checksum, and reflashed my Spirit Pro. I has already updated the GeoLink to 1.2.0. Everything had been working on 2.8.0 and the previous GeoLink fw.

In the Spirit settings, everything looks correct. I have modified my setup for RTH, and it shows state (4) when activated. The swash stays level when it is activated, and Rescue also. The GeoLink settings looks correct, the Geofence, RTH and Position Hold all show activated when those function are activated. The version shows as 1.2.0, and the heading changes when I rotate the heli on the bench. However, the blue light only flashes for an instant at power up, and then stays off. The number of satellites remains at (0).

Hello,

it is necessary to go out of the building. In any building satellites can be acquired usually in 1 - 10 minutes or at all. So testing GeoLink features inside is usually useless.
It is independent of firmware, but very dependent on weather and current satellite configuration.

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Spirit System developer

Thank you, that worked. It was right under a window before, I thought it would see at least 1 or 2 satellites.

Yes, but it will take additional time. If GeoLink was flying few moments ago it might acquire satellites much faster, within few seconds even in building.

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Spirit System developer