So I just updated my S2 scale from v2.08 to v3.11 (took a few attempts). I'd weighed myself about an hour before the update, and as part of the final update steps it says to weigh again. According to the newest firmware, I've put on 2kg in the past hour (I've had nothing to eat or drink in that time, same clothes, so I'd expect the weight to be near identical)! Checked my old dumb-scale and it agrees with the earlier measurement. I tried a second weigh-in on my S2, same thing, still 2kg over-reported... Is there any way to calibrate the scale after this latest update?