When the HUAWEI Vision is powered on and no operations have been performed for five minutes, the screen will automatically turn off. To change the automatic screen-off duration, perform the following:

1. On the HUAWEI Vision's Home screen, go to Settings > General > Serial number.
2. Follow the onscreen instructions to enable or disable Screen timeout. You can also set the duration (30 minutes, 1 hour, 2 hours, 4 hours, or 6 hours) for the screen of the HUAWEI Vision to automatically turn off.