OnePlus 8 5G UW - Volume Controls
Here's how to adjust the volume if your OnePlus 8 5G UW doesn't vibrate or play sounds when receiving calls / messages.
- From a Home screen, swipe up to access the apps screen.
- Navigate:Settings
>
Sounds & vibration. - Adjust any of the following:Drag the slider left or right to adjust the level. If unavailable, ensure the Do not disturb switch and the Mute all sounds switch is turned off.
- Call volume
- Ring & notification volumeThe Ringer switch (right-edge of device) must be enabled to Ring to adjust setting.
- Alarm volume
- Media volume
The volume can also be adjusted by pressing the 
Volume buttons
(right edge) up (+) or down (-).