I loved my FitBit Flex. I thought it was the best thing ever. It tracked how much I walked, was a silent alarm to wake me up, tracked my sleep patterns, estimated the number of calories I burned and gave my daughter something to do while bored standing beside me (who doesn’t love to tap on things to make LEDs light up). Then one day, I got an alert on my phone that there was a firmware update for the Flex. I tapped to update, watched it start and then poof, the FitBit went into a Cylon state where the LEDs just flashed from side to side until the battery…