I. Budget
Make a budget for everything you buy, so that you can know your buying needs clearly. First of all, we need to determine its reasonable price in the second-hand market. Many merchants will take advantage of consumers' greed for petty gain, deliberately bid a very attractive price, and finally give you a fake machine with a lock. Learn more about the second-hand ipad market, and try to avoid products whose prices are quite different from the normal market prices, so as to avoid more pits.
Second, the use
According to the purpose of buying ipad, choose the model with appropriate cost performance. If you just follow the drama, we recommend a small memory, such as 64,2019. These models are quite cost-effective, depending on the quality of the machine.
Third, the machine color
After determining the model to be purchased, according to the color content introduced by the seller, see if the overall appearance of the tablet is the same as what the seller said, especially where it bumps. If it is online shopping, ask the other party to take a picture of the defective place to see if it is true, so that you can check it after sending it. If there is a second injury, tell the seller, either send it back or meet it in express delivery. This is the problem of express delivery. Talk it over with the courier.
Four. Internal inspection
Generally, before buying, the boss will send out the contents of the flat-panel AISI sequence inspection to see the overall details, production capacity, serial number, factory date and so on. Ask the boss for the serial number, and go online to find a professional money detector to see if the content is the same as what the boss said; Don't listen to the seller's bluff if you have any questions.
Purchase is nothing more than online and offline channels? I believe that most people buy second-hand electronic products online now. No matter which platform you choose, in short, don't deal with sellers who specialize in selling second-hand electronic products. There are so many versions of the iPad that some of them have even stopped selling in the market, so these sellers are likely to buy replacement machines or expansion machines and share some personal experiences:
? on-line
Idle fish, Taobao and JD.COM are the easiest channels to find! Taobao and JD.COM are both big platforms, which are relatively formal, but you must keep your eyes open and choose reliable shops when buying idle fish. Real individual sellers will write clearly their usage and reasons for selling, and whether there are accessories.
Choosing a reliable online merchant when purchasing can ensure that the second-hand goods can pass strict inspection, ensure that the products will not have hardware problems that are imperceptible to the naked eye, and avoid the pits of refurbished machines, cottage machines, problem machines and dark disease machines. You can buy it with more confidence and even have the experience of a new machine.
? Offline
1, intra-school transactions
Second-hand group, flea market, universal wall and so on. You can find your own students with ipad in college. There are few swindlers in the university, so you can deal face to face and solve problems!
2, second-hand shops
Second-hand shops will basically resell them after receiving them, so after careful screening and inspection, the quality will be more guaranteed, so we can buy them more easily, which can effectively avoid the problem of buying broken machines because we don't know how to check them.
Precautions? Pit prevention guide
Choose sesame with high credit score.
Those who have no sesame credit are likely to be liars. Some special sellers of second-hand electronic products will pretend to be students' party entrance examination and use these gimmicks to sell, so everyone must go to the seller's homepage to have a good look. If he has sold a lot of iPad, he can basically go through the seller. Don't worry about shopping, squat more ~
serial number
Be sure to look at the serial number! It's best to let the seller take a video to see the serial number now, because this kind of thing can also be faked. Check in official website to see if the machine is black. In the process of buying, many sellers said that the serial number had been changed and they didn't sell it. They changed the serial number of the second sale. These are all lies. I specifically asked my professional friends in this field. This is a hardware decoder or a refurbished machine. Don't buy such a machine for cheap. The machine may turn into a brick at any time.
Ai si quan LV
Before buying, the seller needs to provide you with the AISI diagram of the machine, and the test report of AISI assistant must be all green! This operation is very simple. You can download AISI Assistant on your computer to view it. Generally speaking, AISI has no problem, that is to say, the machine is original and has not been disassembled and repaired. AISI will be reminded if the machine has been disassembled and repaired and parts have been replaced. Just in case, you still have to check the serial number. If you don't understand, you can spend ten yuan to buy a GSX tester on Taobao, which can provide an extra layer of protection (ps: you must ask customer service if you can check the battery life).
Procurement platform
Online shopping must be traded on the platform. Don't listen to the seller fool you into transferring money offline. Don't transfer money to individuals privately (neither WeChat nor Alipay? ), don't believe any excuses, taking the platform is the most reassuring and protecting our money? Because the platform will only release money after you receive the goods? Transferred to the seller, once there is any problem, the platform can also safeguard our rights and interests.
Check screen
Whether there is light leakage, the screen is yellow or green, and the corners are dark. Check whether the home button works, the on-off button and the sound button are effective, whether the camera is normal, and whether the iPad20 18 has no flash? Yes
Check the battery capacity.
The most convenient way is to download an iPad support and contact customer service for inquiry. Generally speaking, more than 90% of the battery capacity will not be lost.
Before buying, you should confirm with the seller that there is no quality problem in the function use of the machine, and the machine does not have any D and enterprise lock. The machine can be upgraded and refreshed at will after receiving it. Although I did a lot of homework before deciding to buy, I still can't take it lightly after receiving the goods. I must have a good look at this machine. After receiving the baby, you must remember to take the video of unpacking, so that there is evidence for any problems in the follow-up. The specific operation process is as follows:
After receiving the courier, you should record a video from picking up the courier to unpacking and checking the mobile phone. At the same time, make sure that the received model is correct.
After unpacking, you can look at the light source to see if there are scratches on the screen, back and side of the fuselage, which should conform to the description before purchase.
After starting the machine, check whether the serial number in the settings (about this machine) is correct and whether it matches the serial number of the packaging box.
The test screen shows that you can enter it in the web page (online screen detection), and you can immediately see if there are any unnecessary white dots by color. At the same time, enter the settings, display and brightness to see if the tablet can turn on the "primary color display" function.
Detect whether there is a connection problem when dragging the screen, and at the same time slide the screen to determine whether there is a broken touch problem.
Take light source photos, white walls or white paper, and dark pictures before and after, respectively, to see if there is any problem with the lens; Flash photography should also be watched; Record a video and check if there is anything wrong with the video and audio.
Test WiFi, bluetooth, Is there anything wrong with fingerprints and faces?
Check the unlock screen and test whether the gravity sensing part is normal.
Connect AISI assistant to check the machine.
If all the above steps are passed, you can reactivate! The above is the selection method and some precautions I shared about the second-hand tablet. I hope it helps you ~