Apple has published on its website support instructions with tips on the sides of a delayed iPhone.
The company gives general advice on the far screen, Wi-Fi, battery, buttons, camera, speakers and microphone. Apple is also thinking about how to check for non-original parts (via Settings → General).
At the same time, Apple does not take into account many other points that are important when buying a smartphone in person. For example, what numbers to check on the box and iPhone, how to check the water condition sensor and how to find out the exact number of battery recharge cycles.
Therefore, we advise you to better use our instructions, which contradict many more parameters.
Source: Iphones RU
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