Probably it is usual Garmin SW. Some features are close intentionally.
Rotation of screen is present in help by the way. JNX maps is supported too. For hardware device the features may be open by changing of 140.bin (region). I think in this case must be some tricks too.
Help is often universal.
I didn't check if both orientations exist in the apk and if they are active. If they are, then voodoo can correct it if he has the will
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