![]() ![]() Since the smartphone is an electronic extension of our lives, we need to keep the phone secure and safe. If you can’t get into your phone easily using the fingerprint sensor, it may be faulty. Set up the security to require a fingerprint and test it. Most phones now have a fingerprint reader, used for additional security. If yours does, there will be an app that can access it and show you if it’s working. It can be used to determine how far above sea level we are or if there are incoming weather changes. The barometer detects atmospheric pressure. If it’s bright enough, the flash doesn’t go off and vice versa. This is the sensor used when your camera is in autoflash mode. Light Sensors detect how bright the light is around the phone. This is how your phone knows it’s near your ear and turns off the screen. The LED shines IR light, which we cannot see, and the IR sensor picks it up. It uses a combination of an infrared light sensor and an infrared LED. Proximity sensors are used to see how far your phone is from other solid objects. Open the phone’s compass app and see if it finds north and changes directions if you turn around. The magnetometer ties in closely with the GPS. Flipping it over makes the screen turn off for a lot of phones. Turning sideways should bring your phone display into landscape mode. Test it by rotating your new phone and seeing if it does what it’s supposed to do. The gyroscope senses the phone’s position. Those may include a gyroscope, magnetometer, accelerometer, proximity and light sensors. Smartphones have several sensors built-in. How will we know? We won’t but we’ll know if the GPS is way off and says we’re two streets over. If you’re standing in an open field, the phone’s GPS should be accurate within a 16 ft. Then check on the phone’s map to see if it accurately locates where you are. If you can set the phone to find your location using just GPS signal, do that. If the phone has NFC capabilities and you use services like Apple Pay or Google Wallet, that should be tested as soon as possible.Ĭheck the GPS. That way, it won’t die halfway through installing an app, transferring data, or updating the phone’s operating system. There are a few theories on the best way to charge a phone, but for the first time, you’ll want to make sure it has a full charge before starting the phone set up. Keep your phone turned off and let it charge for a full eight hours. When the phone passes your visual inspection, start charging it. If it’s not up to your standards, take it back. If you see any of these problems, make a note of them right away. If the cord plug doesn’t stay in the port on its own, or it wiggles a lot, something’s wrong. On phones, there should be no wiggle room. Plugs should fit properly in their ports.There shouldn’t be any discoloration or bits of plastic sticking out either. Take a good look at everything for cracks. ![]() Take out the SIM card tray and microSD card tray if it has one.If you can open the case and check the battery, do that.Go through all the items that come in the box with it.Check all the ports to make sure they’re fitting properly.Look at all the seams where the glass meets the case.
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