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What should be paid attention to when buying second-hand iPhones

4hw.org: for many people who want to experience iPhone and IOS system, the price of new iPhone is too expensive. It's also a good choice to buy a second-hand iPhone. However, the water of second-hand iPhone is too deep on the market, and many broken machines are sold after renovation. At this time, consumers need to polish their eyes. The following editor will teach you the inspection process of purchasing second-hand iPhone. Thank you!

Step 1: judge whether it is a water cargo refurbisher disguised as the National Bank

It's also the most important step to 'erase all content'. Point: settings - General - restore - erase all content and settings! Note, don't choose the wrong one. Choose the second one to 'erase all content' instead of the first one to restore all settings!

In this way, all the refurbished machines that rely on jailbreak to change the serial number will restart and can't! (that is, white apple). If you don't do the first step, the next steps will be done in vain.

If you need a password or network, let the seller give the password and find the place of the network. This step must not be saved. If you don't let it go back, you must be deceitful. Don't buy it.

Step 2: judge whether it is 5 to 5S

If it can be successfully erased and restarted, then the next step is to see: settings -- fingerprint -- new added fingerprint, whether it is easy to use.

If the fingerprint can't be added, it's a 5 disguised as 5S. This kind of machine is also a retrofit machine. You can't buy it.

Step 3: check whether the origin is described truthfully

Click: settings - General - about this machine. First, look at the model to identify the origin, for example, md999ch / A. if the two letters of CH position are ch, then it is the National Bank; if it is ZP, then it is the Hong Kong Bank;

Most afraid of J, the Japanese version has a lock, especially where the operators are in Japanese.

Step 4: check the warranty period

Click: settings - General - about this machine. Look at the serial number, and then go to Apple - support to enter the verification. See when the warranty date is. Is it as the seller said

Step 5: check the active lock status of find my iPhone

Open the official website of apple http://www.icloud.com/activationlock/ or Baidu: query the official activation lock of apple, and then input the serial number to see if the mobile phone is in the inactive state, so that you can hang up your icloud account

Step 6: it's not too important to check whether the accessories are rough, worn, machine color, etc.

To test the app: lirum device info Lite in Chinese, you need 18 yuan to buy: Li Luo detector. It can test all kinds of models and display the prototype.