Troubleshooting, Unresponsive watch, Factory reset – Lenovo Moto 360 User Manual
Page 20: Updates, Trouble, Shoot, Next

Troubleshooting
Unresponsive watch
In the unlikely event that your watch becomes unresponsive,
press and hold the power button for 25 seconds to force a
power down. Then turn the watch back on as usual (see
“Power on & off”).
Factory reset
Touch the watch screen, then scroll down and touch Settings
> Reset device.
Use this feature to clear all settings and information about the
current paired phone, so you can pair your watch with a
different phone.
Warning: All downloaded apps and user data on your watch
will be deleted. Data on your phone will not be deleted.
Updates
When a software update for your watch is available, your watch
will notify you that an update is ready to install. Follow the
instructions to update your watch software.