Appendix137The battery depletes faster than when first purchased• When you expose the device or the battery to very cold or very hot temperatures, theuseful charge may be reduced.• Battery consumption increases when you use messaging features or some apps, such asgames or the Internet.• The battery is consumable and the useful charge will get shorter over time.Your device is hot to the touchWhen you use apps that require more power or use apps on your device for an extendedperiod of time, your device may feel hot to the touch. This is normal and should not affectyour device’s lifespan or performance.If the device overheats or feels hot for a prolonged period, do not use it for a while. If thedevice continues to overheat, contact a Samsung Service Centre.Error messages appear when launching the cameraYour device must have sufficient available memory and battery power to operate the cameraapp. If you receive error messages when launching the camera, try the following:• Charge the battery.• Free some memory by transferring files to a computer or deleting files from your device.• Restart the device. If you are still having trouble with the camera app after trying thesetips, contact a Samsung Service Centre.Photo quality is poorer than the preview• The quality of your photos may vary, depending on the surroundings and thephotography techniques you use.• If you take photos in dark areas, at night, or indoors, image noise may occur or imagesmay be out of focus.