According to homework firm Idc report shows that with 2015 the global second-hand mobile phone shipments involving 81.3 million, and 2020 will reach 222.6 million, the actual compound annual growth rate involving 22.3%. This also means that more and more people can choose to use second-hand mobile phone.
The use of second-hand mobile phone is indeed a social choice, 1st is to reduce the environmental pollution regarding electronic products, second: second-hand cost is much lower than the new product. But how can you make sure to have a very good second-hand phone? Do you interested in after few days you bought it is going to stop working?
Here we take a look at how you can distinguish true or bogus iphone:
First, with or without iCloud activation lock
Particularly important! If the purchase of second-hand iphone there is certainly activation of the lock, the very first can not confirm whether the owner of the seller himself, the second will be the next day the iphone will be immediately locked directly to the distant can not be used, so the formal website of Apple to confirm if thez iphone iCloud activation lock, Buying a utilized iphone with an iCloud activation lock just isn't recommended.
Second, the issue serial number
Through Apple's standard website or fruit natural powder query and other third-party tools to be sure of the phone serial number of a number of important information, such as: activation moment, the remaining warranty period, utilised iphone mobile phone box, mobile phone components may be fake, so the primary code significance.
IPhone mobile phone successive number determined by the mother board, but the market may be a cheating spouse serial number tampering, but look at the serial number can be said the fact that first step in the inspection unit. The Internet will often appear to Taiwan, Korea, Japan, the US version of the actual serial number into the Country wide Bank of the number of total. Even without the iCloud lock the sequential number of the motherboard to jot down, once the next Brush for you to re-activate, will once again be iCloud initial lock can not be activated to help activate the use.
Third, DFU Sweep
Get the machine after the recommended DFU mode through iTunes completely brush machine, is not a authentic machine a test.
Ios DFU mode: Advancement Firmware Upgrade, that is, ios firmware forced limit mode. If you buy is not a authentic machine, then in the DFU recovery process may occur the following:
1. The big mistake code can not be recovered.
When you get an error code, you can consult Apple's official technical support documentation. In case the recovery can not be completed by the actual above-mentioned activation, then this machine is probable not a real machine.
2. Remember to brush can not be activated after completion.
Brush machine is completed cannot be activated, or obviously brush machine has been confirmed before there isn't any iCloud activation lock (refer to solution .), brushing machine is prompted to enter a strange Apple ID to be able to activate, then this machine will not be real machine , Or customize the serial number of the machine. Also, if it is a card machine or foreign contract machine through illegal channels in order to unlock, will not be able to complete the comb machine after the normal account activation.
3. Brush in the process of long-term "white apple" program can not continue to the next step.
Given that the connection to the computer's data cable is original along with normal connection without interruption, the computer network connection is normal, a steps are correct, in the event that repeated try DFU Brush however only appears Apple LOGO but can not enter a long time to a higher step, then this machine is likely to Not a real machine.
Final, hardware testing
Because upfront to know that you buy a second-hand cell phone, so the machine hand towards post, you do not have to look at precisely what the phone has no sandalwood flavor, there isn't any foil what, first ascertain the machine, fineness, appearance, color and description is not the picture exact same.
And then began to test the phone's hardware, which need for being tested one by one, very time-consuming, there are some detailed test goods may be ignored.
Began to analyze the hardware to see whether or not the appearance of the phone give or burr, the handset in addition to speaker mesh is woven mesh, as if the feel is as good as authentic, and then check the power option, volume keys, mute press button, Home button touch vulnerable and feedback is obvious and not stiff, check whether the digital camera into the gray or bust.
Appearance part of such a number of, and then switched to the subsequent stage.
Screen check strategy: you can download some absolute white, pure black, genuine green, pure red wallpaper, the brightness of the major mobile phone backlight point of view whether there may be uneven and bright places, tilt to see the taking a look at angle, the edge is not noticeable light leakage.
Touch id is normal: whether or not the fingerprint recognition function is simple and sensitive identification, seek to enter once and discover many times.
WIFI is normal cell phone: WIFI link detection is common and stable signal energy.
Gyro is normal: open the original compass application, a glance.
Camera focus is accessible: you can try to take pictures, macro, and many others., iphone 6 with phase focus, additionally you can use the palm of your side try the camera close and long-range automatic switching speed will be fast.
Headset is normal: seek to insert the headset can be smooth, if the headphone jack can not be used, there may be damage to the system board.
Distance sensor is normal: the phone is tested once the cover might be off the screen near the device and sensitive, a try to find out.
Flash is normal: turn the camera switch to record video method and choose to turn on the flash, pay attention to also observe several models of well-being LED flash are typical working properly at the same time, a glance.
Wireless is normal: iphone can only match various other Bluetooth devices but can not necessarily search other iphone, get a Wireless headset to match the connection, a glance.
Mic is normal: open the system incorporates voice memo program, a creating know
Vibration function is typical: light side of the phone mute button, a glance.
Perhaps the network lock: Turn off the data in the cellular data running around, built-in card machine may not be sealed after the closure of the Online.
Note: If an application named "Qcard" have to be an internal card sticker.
You cannot find any disassemble: This will need to disassemble to judge their own, mainly is determined by whether the internal water examine paper intact, there is no clear motherboard repair or "flying line" welding traces.
Components: This is particularly important, if the supplier told you that comes with the original Apple equipment, then you have to take a good think about the power adapter inside the serial number is clear, whether the imprinted fonts and other original nicely line, the data line interface copper is neat Burrs or maybe corrosion marks. Apple's original arrangement (data cable, power adapter, headset) is still very expensive, towards the profiteers left a new multi-barreled new business, our recommendation is that users use the original and also with Apple's official MFi certified gadgets, or may appear in the future Harm to the motherboard can not be charged or accelerated battery loss a result of automatic shutdown restart and the like.
Note: General second-hand mobile phones are not original apple accessories or invoices, because, after all, second-hand equipment, sellers sell either when these matters are too old, or is displaced lost. So buy second-hand mobile phone are basically bare metal.
When the average user to check much has been quite easy, and should be able to avoid most of the problem machine.
Finally, I wish you a delighted purchase!
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