How to self-check whether there are problems with the new iPhone 13/14 and how to avoid buying refurbished devices.

With the improvement of living standards, many people will choose to buy new mobile phones after using them for one or two years. After we replace or recycle our old phones, some manufacturers will refurbish them and resell them in brand new condition!

Today's refurbishment technology makes the appearance and packaging of mobile phones almost exactly the same as brand new mobile phones. It is difficult for us to distinguish whether they are true or false by their appearance and naked eyes. However, once we buy a refurbished phone, we will find that the battery life is not only not as long as that of a new phone, but it is also not durable enough. There may even be many minor problems, such as frequent cell phone freezes, unresponsiveness, etc. These problems have become commonplace.

What should I do if I worry about problems with my new iPhone 13/14 after buying a new phone? You can use the following iPhone self-test tutorial to determine whether iPhone 13/14 is a refurbished machine in just one minute

1. Look at the appearance

Check the screen, back panel, frame and camera appearance Whether there are scratches on the glass, turn on the mute button at the same time, and check whether the vibration function is normal

2. Check the camera

When taking pictures, point the camera at the white wall, and then enlarge the photo to check whether There are dust shadows or dead pixels. Next, use the front and rear cameras to record video, adjust the focus, check whether the focus is correct, and confirm whether there is sound

3. Screen off touch

Drag the desktop icon to scan the entire desktop. Observe whether there is disconnection

4. Call function

Dial the phone and confirm whether the signal is normal; cover the bangs with your hand and check whether the infrared sensor is normal

5 , Internal inspection

Connect the phone to the computer, open the Apple data management tool, check the machine inspection report, and see if there are signs of replacement parts

Can pass The above five methods basically determine whether the newly purchased iPhone 13/14 is a refurbished machine

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