Samsung SM-G930F - Manual (Page 11)

Basics
11
Main antenna
Volume key
NFC antenna / MST
antenna / Wireless
charging coil
Rear camera
Microphone
Flash
• 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 cover the proximity sensor area with screen accessories, such as a screen
protector or stickers. Doing so may cause the sensor to malfunction.