My vivofit 4 keeps blinking. It appeared to die (screen became garbled, then faded to black), so I replaced the batteries. This unit is only 6 months old.
My vivofit 4 keeps blinking. It appeared to die (screen became garbled, then faded to black), so I replaced the batteries. This unit is only 6 months old.
It sometimes seems to cycle through the menus all on its own, too.
Hold the device key for 10 seconds until the screen turns off. 2 Release the device key. The device resets, and the screen turns on. You can pair your vívofit 4 device with multiple mobile devices.