Fitbit Versa 2 Factory Reset. Your smartwatch will now reset and . Scroll down and tap factory reset. To reset your fitbit flex, plug your charging cable into the usb port, and then insert the tracker into the charging cable. Hard reset · open the settings app on your fitbit. In this video i'll show you how to factory reset your fitbit versa 2 smartwatch.see more videos by max here: . Press and hold the button* for 10 seconds until you see the fitbit logo on the screen, and then release the button. Restart the computer, and follow the instructions in your owner’s manual