White Spot on Garmin LED face

Yes, another watch with the same propblem. Old threads are locked so I made a new one. 

I purchased my watch abroad as there is no Garmin agent in my country. The watch (245 Forerunner) is 1 year old, the screen started to fade and made a white spot like what you see elsewhere on the forum. Not having a Garmin shop here is a bit of a problem in resolving this issue in person. What can I do?