Hi! Yesterday I got my mi band via aliexpress and for literally first 15 minutes everything was allright. Problems started after I charged device using stock charger naturally. After that i noticed that band doesn't count steps anymore and heart beat monitor does not work too. When I click on it it shows some artifacts/blinks except normal screen and says "Couldn't measure". It also doesn't turn on display when i raise my wrist. I made several reboots, factory resets and reinstalled MiFit app but the problem is still present. Is it possible that charger damaged band somehow? What can I do?