MiBand operation

hi i bought mi band and i have some questions. 1. can someone direct me to a user guide , because it notify me sometimes for example by flashing light or vibrate without any reason and i don't know what it wants from me. 2. i think the step count is giving fake reading because it shows me a long distance walk where i only travel a little by foot. maybe also it should have special thread at the forum . many thanks

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