My Forerunner 610 Will Not Stop Vibrating

If your watch is continuously vibrating, this can occur for two reasons.  Either the watch is removed from the charging cradle while the battery is at a critically low state or the watch has locked up while the vibration motor was spinning. Both of these instances will prevent the watch from powering off. If this occurs, you will need to perform a hard reset. 

1. Press and hold POWER/LIGHT button until the watch stops vibrating
2. Place watch on charger and allow it to fully charge to 100%

Once fully charged, the watch should now operate as normal.