Update failure is usually caused by unstable connection or temporary loss of connection during the update.
To fix the problem, please try the following steps:
1. Put GoBe2 on its charger.
2. Restart your HEALBE mobile app (open recent apps, swipe HEALBE app and run it again)
3. Keep your phone as close to the band as possible.
4. Try running the update once again. Please don't close the update window on your phone and don't use other apps while the update is running, as this may interrupt the connection.