Hi guys,
The heart rate sensor of my MK1 just failed. It has been super bright-almost can be used as a flashlight-and hot. One of my friends met the same issue with his MK1 about a year ago. His watch ended up with repaired under warranty. It seems that there has been something wrong with their QA. I've sent an email to Garmin last Thursday, but nothing has happened. Has any of you met the same issue?