After buying a second-hand iPhone, many whites are accustomed to doing a factory reset first, so as to process all the information of the original owner, but not all mobile phones can be factory reset, and some may be locked. If you encounter a locked situation, there is a high probability that you have encountered an iPhone with an activation lock, so what is an ID lock?
ID lock, also known as activation lock, appeared after Apple turned on the "Find My iPhone" feature under iOS 7 and later. When users flash or upgrade the system in the "Find My iPhone" state, they need to reactivate the Apple ID account on the bound phone to access the desktop. Without this account password, the phone will not be usable, that is, it will be locked. The unlock can only be done by entering the original owner's Apple ID account password.
The approximate meaning of the ID machine is that if the Apple mobile phone logs in to an ID and turns on the Find My iPhone function, the phone will be locked by this account, and when you restore and erase the information and reactivate, you must enter the correct account password to use it normally.
There must be two situations of ID lock, one is that when some second-hand iPhones are recycled, the original owner did not exit the ID, which will not only cause privacy leakage, once the phone is locked or restored, it will be locked and cannot be activated, and the other is that the merchant may hide the original ID through special means, in this case, the mobile phone activation lock is still there, but the original ID can be bypassed, and other IDs can be logged in temporarily.
When you buy a second-hand iPhone, it is best to check the serial number, check whether the phone has an activation lock, and avoid buying an ID machine or a hidden ID machine, although the price of the ID machine is cheap, and there are many shortcomings, such as it cannot be erased, upgraded, and the original ID will pop up after flashing, etc. So it is especially not recommended to buy, the reason why this iPhone14 is cheap, is because it has a hidden ID! Everyone must pay attention when buying a machine, do not buy an ID machine, there are many shortcomings, big hidden dangers!
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