If you don’t see a smiley face after 10 seconds, adjust the position of the device in the charging cable, verifying it’s securely in place.Note: The device vibrates when you press or release the button. When a smiley face appears on the screen, release the button. Press and hold the button on the side of Charge 4 for at least 10 seconds.Make sure the device is securely in the charging cable and restart Charge 4:.Make sure the connection is secure, as described above. Remove Charge 4 from the charging cable, then place it in the charging cable again.If you don’t see a smiley face or the Fitbit logo on the screen after 5 seconds:.Plug the charging cable into the USB port on a UL-certified USB wall charger.Connect Charge 4 to the charging cable, making sure the connection is secure, as described above.
