Does not work after 1.5 months.
UPDATED
This device doesn’t work after 1.5 months. I don’t know mine was defective or not.
Lights are on right now and never blink. Screen is blank. I can’t turn off, so lights are on for a day. I goggled and found out so many girls have same problems. If you have same problems , leave your device until light are off.(until battery is completely gone ). Then recharge battery.

