When installing a Go, you might need to start by a reset if the device doesn't display one of these two screens:
1/3 - Start by pressing and holding down the center of your Go screen for about 25 seconds, until the following screen appears:
2/3 - Then press the screen five times, and the following sequence of screens should appear:
3/3 - After a few seconds, your Go should display the following screen and be ready for setup:
If you have any questions or experience an issue with your Go, please visit the Help Center in the application menu or contact us on the web: https://support.withings.com/go