all of a sudden it won't measure heart rate or do a workout. I went for a run stated workout it counted down 321 then it just stopped working. It measured my steps but that's all. I turned watch off and restarted it but still does not work. I have an error measure saying clean sensor so I done that still not working.Can you help me please.
Thank you for reaching out, I recommend having the watch evaluated by a certified technician, I will be happy to look into those options for you. Please send a private message with the full model code and the serial number/IMEI number of the watch. http://bit.ly/2XERsky
What type of device are you trying to locate the full model number and IMEI for?
This information can be found in the Wearables app under the About Watch option or on the back of the watch in small print.