According to analysis firm Idc report shows that around 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 associated with 22.3%. This also means that more and more people is going to choose to use second-hand mobile phone.
The use of second-hand smartphone is indeed a social choice, very first is to reduce the environmental pollution involving electronic products, second: second-hand costs are much lower than the new appliance. But how can you make sure to get yourself a very good second-hand phone? Do you concered about after few days you bought it is going to stop working?
Here we take a look at how you can distinguish true or false iphone:
First, with or without iCloud activation shut
Particularly important! If the purchase of second-hand iphone there is certainly activation of the lock, the 1st can not confirm whether the owner of the seller himself, the second will be the next day the iphone will be instantly locked directly to the rural can not be used, so the formal website of Apple to confirm perhaps the iphone iCloud activation lock, Buying a made use of iphone with an iCloud activation lock seriously isn't recommended.
Second, the query serial number
Through Apple's public website or fruit powdered ingredients query and other third-party tools to confirm the phone serial number of a few important information, such as: activation moment, the remaining warranty period, made use of iphone mobile phone box, mobile phone add-ons may be fake, so the essential code significance.
IPhone mobile phone serial 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 which the first step in the inspection appliance. The Internet will often appear to Taiwan, South korea, Japan, the US version of your serial number into the Country wide Bank of the number of full. Even without the iCloud lock the sequential number of the motherboard to write, once the next Brush to help re-activate, will once again be iCloud activation lock can not be activated to activate the use.
Third, DFU Clean
Get the machine after the planned DFU mode through iTunes absolutely brush machine, is not a real machine a test.
Ios DFU mode: Progress Firmware Upgrade, that is, ios firmware forced limit mode. If you buy is not a serious machine, then in the DFU process of healing may occur the following:
1. The big mistake code can not be recovered.
If you get an error code, you can consult Apple's official technical support documentation. In the event the recovery can not be completed by a 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 should not be activated, or obviously remember to brush machine has been confirmed before there's no iCloud activation lock (refer to website), brushing machine is prompted to enter a strange Apple ID to help activate, then this machine is probably not real machine , Or get a new 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 brush machine after the normal initial.
3. Brush in the process of long-term "white apple" slot can not continue to the next step.
Provided that the connection to the computer's details cable is original and also normal connection without interruption, laptop network connection is normal, the particular steps are correct, in case repeated try DFU Brush continue to only appears Apple LOGO but tend to not enter a long time to another location step, then this machine probably will Not a real machine.
4th, hardware testing
Because beforehand to know that you buy a second-hand cell phone, so the machine hand towards post, you do not have to look at what the phone has no sandalwood flavor, there isn't a foil what, first identify the machine, fineness, appearance, colour and description is not the picture same.
And then began to test your phone's hardware, which need to get tested one by one, very time-consuming, there are some detailed test things may be ignored.
Began to test the hardware to see perhaps the appearance of the phone side or burr, the handset and also speaker mesh is weaved mesh, as if the hint is as good as real, and then check the power key, volume keys, mute switch, Home button touch very sensitive and feedback is obvious although not stiff, check whether the digicam into the gray or fracture.
Appearance part of such a handful of, and then switched to the minute stage.
Screen check procedure: you can download some genuine white, pure black, absolute green, pure red wallpaper, the brightness of the largest mobile phone backlight point of view whether there's uneven and bright destinations, tilt to see the watching angle, the edge is not noticeable light leakage.
Touch id is normal: whether or not the fingerprint recognition function is even and sensitive identification, attempt to enter once and unlock many times.
WIFI is normal cell phone: WIFI link detection is common and stable signal muscle.
Gyro is normal: open the original compass plan, a glance.
Camera focus is available: you can try to take pictures, macro, and so forth., iphone 6 with phase focus, you can even use the palm of your hands try the camera close in addition to long-range automatic switching speed is actually fast.
Headset is normal: try and insert the headset is definitely smooth, if the headphone jack can not be used, there may be damage to the mother board.
Distance sensor is normal: the phone is usually tested once the cover will likely be off the screen near the handset and sensitive, a try to learn.
Flash is normal: turn the digital camera switch to record video setting and choose to turn on the expensive, pay attention to also observe a few models of well-being LED flash are typically working properly at the same time, a glance.
Wireless is normal: iphone can only match some other Bluetooth devices but can not really search other iphone, get a Bluetooth headset to match the connection, a glance.
Mic is normal: open the system includes voice memo program, a producing know
Vibration function is normal: light side of the cell phone mute button, a glance.
Whether or not the network lock: Turn off the information in the cellular data wandering, built-in card machine may not be finished after the closure of the Online.
Note: If an application named "Qcard" needs to be an internal card sticker.
There's no disassemble: This will need to disassemble to judge their own, mainly depends on whether the internal water examination paper intact, there is no apparent motherboard repair or "flying line" welding traces.
Accessories: This is particularly important, if the vendor told you that comes with the original Apple add-ons, then you have to take a good evaluate the power adapter inside the serialized number is clear, whether the branded fonts and other original well line, the data line screen copper is neat Burrs and also corrosion marks. Apple's original configuration (data cable, power card, headset) is still very expensive, towards profiteers left a new multi-barreled new business, is always that users use the original as well as with Apple's official MFi certified accessories, or may appear in the future Trouble for the motherboard can not be energized or accelerated battery loss brought on by automatic shutdown restart and so on.
Note: General second-hand mobile phones are not original apple accessories or receipts, because, after all, second-hand equipment, retailers sell either when these things are too old, or is dropped lost. So buy second-hand smartphone are basically bare metal.
If the average user to check so much has been quite easy, and should manage to avoid most of the problem machine.
Finally, I wish you a happy purchase!
No comments:
Post a Comment