You can reset employee's bound device on mobile app or at Web Admin
PC: Log into Web Admin then open [Employees] and click smartphone icon located at the far right of the employee row. Click [Reset Device].
Mobile: Tab [More] - [Employees] - Open the employee's profile - Tab [Device Reset] at the bottom.
Once reset, 'Device bound' should turn from 'O' to 'X'.
*Shiftee will, again, bind the new device employee uses as he/she connects to your company.
*Learn more about Employee Device Binding