Samsung SM-J106B User Manual page 7

Basics
Connectivity problems and battery drain may occur in the following situations:
– If you attach metallic stickers on the antenna area of the device
– If you attach a device cover made with metallic material to the device
– If you cover the device's antenna area with your hands or other objects while
using certain features, such as calls or the mobile data connection
Using a Samsung-approved screen protector is recommended. Unapproved screen
protectors may cause the sensors to malfunction.
Do not allow water to contact the touchscreen. The touchscreen may malfunction
in humid conditions or when exposed to water.
Keys
Key
Power
Recents
Home
Back
Volume
Function
Press and hold to turn the device on or off.
Press to turn on or lock the screen.
Tap to open the list of recent apps.
Press to turn on the screen while the screen is locked.
Press to return to the Home screen.
Tap to return to the previous screen.
Press to adjust the device volume.
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