Samsung Galaxy J3 用户手册
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Device Settings
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2. Tap Sounds and vibration
.
3. Tap Do not disturb to enable the feature.
Scheduling
This option allows you to turn Do not disturb mode on or off automatically at scheduled times.
Note: Scheduling is not available if Do not disturb mode has been turned on manually.
1. From home, tap Apps
> Settings
.
2. Tap Sounds and vibration
.
3. Tap Do not disturb.
4. Tap Turn on as scheduled, and set the Days, Start time, and End time.