These images map out all the primary functions of the Galaxy S7 Hardware. There are also some interesting disclaimers that come with the location of important antennas. 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. The colors on the curved screen may look different depending on your viewing position.