Samsung SM-F700F/DS User Manual page 13

Basics
• You may notice a crease at the centre of the Main screen. This is a normal
characteristic of the device.
• 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
• If the device is covered with your hands while it is folded, radio waves may be
interfered with, resulting in Bluetooth, Wi-Fi, and other networks not having
smooth connections.
• Using a Samsung-approved screen protector is recommended. Unapproved screen
protectors may cause the sensors to malfunction.
• Do not cover the proximity/light sensor area with screen accessories, such
as a screen protector, stickers, or a cover. Doing so may cause the sensor to
malfunction.
• The light may flicker at the top of the device during calls due to proximity sensor
operation.
• Do not allow water to contact the touchscreen. The touchscreen may malfunction
in humid conditions or when exposed to water.
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