Quote Originally Posted by andy1 View Post
Have you recently updated the firmware? Some new firmwares require Garmins new unlock method the GMA file!
I have purchased the device 3 months ago and have not (intentionally) updated firmware since then. Actually, I don't even know how to do that, or how to tell which firmware I have...
Could you please kindly point me to the related guides? (How to tell the firmware version? How to update firmware? What's the GMA file method? etc.) Many thanks!