How does an Apple Computer distinguish a refurbished machine?

　　 identification method of Mac refurbished machine

1 to tell if a MacBook notebook is a refurbished machine, the first thing you can do from its appearance. From the entire fuselage, the screen, the keyboard to see if there are scratches, appearance damage and so on.

2, also can look at the bottom of the notebook screws to see if there have been twisted traces.

3. If the screws at the bottom have been visibly twisted, that means the machine must be refurbished. If there is no problem with the appearance of the notebook and the screws have not been twisted, please look down.

Second, check the battery usage information

1, because the MacBook Pro or Air will be built a battery, in the use of the process will often charge and discharge batteries, and the battery has forgotten function. We can look at the number of times the battery is used, from here, to see if the current notebook is a refurbished machine. After entering the MAC system, please click on the Apple icon in the upper left corner of the screen and click on the "About this machine" option as shown in the picture

2, click on the "System Report" button on the information window of this machine, as shown in the picture

3, then please click on the "Power" option in the left column of the window in the system report, as shown in the picture

4, then in the battery information under the performance information to see the "cycle times", here you can see my use of the six months have many cycles of 152 times, as shown in the picture

5. If it is a new MacBook notebook, the battery cycle should be no more than 10 times. If the number of loops is too high, the description is used.

Third, view the serial number from Apple website

1, in addition to the above two methods, we can also through the MacBook's own serial number to query. Here we recommend that you go through the bottom of the MacBook notebook to see the serial number of the machine, at the bottom to find serial serial number, followed by the serial number.

2, then please open the Apple website of the Machine Serial number query page address: https://selfsolve.apple.com/agreementWarrantyDynamic.do?

3, input on the back of the machine to see the serial number, as shown in the picture

4, then you can see the current machine maintenance and service warranty, where there is an estimated expiration date, you can calculate its date of manufacture. Minus one year on this date, that is, the factory date for this machine. This will be able to know whether the current machine is refurbished, if with your current date a lot of days, it means that this machine is refurbished machine.