Solution:
1. If the number of steps is found after binding, it can be judged as: before the Mi account is bound to the new band, the mobile phone has downloaded the Mi Fitness/Zepp Life and logged into the Mi account.
①Before the binding of other mi band, the data of the Mi band synchronization to the Mi Fitness/Zepp Life.
②Before not bound to the mi band, Mi Fitness/Zepp Life has read the phone coprocessor step data.
2. If use the Mi Band and the LED screen of the Mi Band shows the number of steps in the unbound case, it can be judged that: Mi Band may shake during the express delivery process,causing the band to record part of steps. In order to ensure the data flow, the band will record the number of steps again after binding the band.
Does it help?