Heart Rate Sensor Gear Fit SM-R350

Dear Sir,

I have a problem with my gear fit, when i try using heart rate its said try and clean sensor. i try restart gear fit but still have the same issue. Let say the sensor is broken, how to replace it?

Thank you

Regards,

Denny

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0