In the context of the increasingly vibrant market for old iPhones, many users are "exposed" when buying a device that has had hardware intervention or poor quality components. This not only affects performance but also poses risks to the safety and longevity of the device.
Here are some tips to know if your iPhone is having a component change:
Check directly in the settings
Since iOS 15 onwards, Apple has added a feature to display the device's repair history in the Settings > General Settings > Introduction section. Here, users can see notifications like "Repsessed battery", "Repsessed screen", "Changes not verify genuine Apple components", making it easy to detect devices with replacement components.
Unpredictable signs
Its hard for an iPhone that has been turned on to be able to recover to its original perfect state, said Adrian Kingsley Hughes, technology expert at ZDNet (USA). Carefully observe the vocational road markers, SIM khecas, and engine frames. If there are signs of abnormal scratches, warping or glue, it may be a sign that the machine has been tampered with."
In addition, Mr. Kingsley Hughes emphasized that the device has an unreal component that can cause the Face ID or fingerprint sensor to work poorly, seriously affecting the user experience.
Use testing software
In addition to eye-catching, users can use specialized software such as 3uTools on the computer to view detailed information about the number of battery charging times, serial number of the component, or unusual replacement signs.
Tips when buying an old iPhone
Users should choose to buy used iPhones at reputable stores with clear warranty policies. Avoid tri-bank transactions without invoices, especially when the selling price is much lower than the market.
Over-the-counter users should go with someone with a technical understanding or go to an independent testing facility for testing before deciding to buy a device, advises Kingsley Hughes.
