Do you confirm that with 1.2 .2 release the gps not work?
Is this default or modified?
Works fine for me
It’s the modified. You can tell by the 5 nav selections.
My gps doesn’t work, I don’t understandt how to modify it.
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You would be running an older version of the PMS50 mod for the GNS530 that isn’t compatible with SU5.
You’ll need to update to the latest version (1.0.36) or remove the older version of the mod and it’ll work again. 
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Hi CryptlicLab solved the problem…many Thanks.
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No worries at all mate.