Hey so my C5 been doing funny things, I charged my device to 100%, I the. Decided to track a walk, it worked for ten mins kept buzzing which I ignored as it’s usually telling my about fat burn and then when I checked black screen, couldn’t sync it .had to wait till I could plug it in to get it to come on which showed battery at 57% so it didn’t run out so why did it fall over so spectacularly? I e tried it a few times it either does this, or it will disconnect gps from my phone and my readings aren’t accurate.
