Samsung SM-J105B User Manual

Basics7• 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 whileusing certain features, such as calls or the mobile data connection.• Using a Samsung-approved screen protector is recommended. Unapproved screenprotectors may cause the sensors to malfunction.• Do not allow water to contact the touchscreen. The touchscreen may malfunctionin humid conditions or when exposed to water.KeysKey FunctionPower • Press and hold to turn the device on or off.• Press to turn on or lock the screen.Recents • Tap to open the list of recent apps.Home• Press to turn on the screen while the screen is locked.• Press to return to the Home screen.• Press and hold to launch Google.Back • Tap to return to the previous screen.Volume • Press to adjust the device volume.