How to tell whether a mobile phone is a refurbished machine or a parallel product?

Some people are worried about buying a refurbished machine, so how to check whether the purchased mobile phone is a refurbished machine? 1, shell The shell of the new machine is tightly attached, and the gap is smooth and smooth without burr. Refurbishers generally use imitation original shell, with uneven gaps and burrs. The upper and lower parts of the mobile phone shell are easy to be closed loosely, leaving a large gap. When recognizing, you can try to insert a small nail into the gap between the upper and lower covers of the mobile phone. If it can be plugged in, it is a refurbished machine. The surface of the shell is frosted like a new machine, and the mobile phone with small particles is absolutely not to be purchased. The paint on the machine shell was sprayed by JS. After a long time, the paint will fall off (the dust particles on the shell are caused by the operation without vacuum environment when painting); 2. The shell of the new machine has a faint sandalwood smell. If it is a refurbished machine, JS generally needs to beautify the fuselage. Although the appearance is smooth, it is not dry enough. When the cover is opened or the battery is taken out, it will smell of rubber, plastic or chemicals. 3. Keyboard and data cable interface. Due to the long-term plugging and unplugging of the charger plug and data cable, there will be black scratches on the charging interface of the refurbished machine that are difficult to eliminate. Keyboard refurbished machines mostly use the keyboard on the old machine or imitate the keyboard. The * * * of this keyboard is that it feels soft and has no toughness of the new keyboard; 4. Charging test. It is best to charge for a long time, generally 10 minutes or more. Because there are many refurbished machines that will run out of power after a long charging time. This is also a very effective method to judge the refurbished machine; 5.SIM card chip contact and battery contact. Generally, these two contacts JS cannot be replaced. If it is a refurbished machine, there will be obvious friction marks on the contacts of the SIM card chip, which looks shiny, which is caused by too much friction. If it is an unused chip of a new machine, the contact surface should be frosted; 6. Fix the screws. Mainly depends on whether there are obvious scratches at the interface between the screw and the blade, and whether there are pick marks on the two rubber pads below the inner screen. 7. Call quality. Bring your own SIM card to test the machine, call a friend, preferably a fixed phone, and ask the other party how the call quality is, whether the call sound is clear, whether there is noise, current sound and volume drop suddenly; 8. price. Because the spare parts of refurbished machines are mostly early products with poor quality, the price is also low. If you encounter a mobile phone that is ridiculously low in price but is called parallel imports by merchants, you can basically conclude that it is a refurbished machine. Briefly introduce the concepts of parallel and licensed mobile phones. Although many people are familiar with the basic use of mobile phones now, too many people do not understand the difference between parallel and licensed mobile phones when purchasing machines, and even many people think that parallel imports are inferior goods and fakes. In view of this, I will now give you a brief analysis and introduction. So what is permission? I now include the definition of "licensed goods" that we generally refer to only based on China! In China, licensed products refer to mobile phones whose products are taxed by customs, licensed by government documents and protected by law. Mobile phones are truly authorized by the government and relevant institutions, and then distributed to the market by agents at official prices. So what is a mobile phone license? Just like a car, every car needs its own legal license plate, otherwise it is a black car. So what's the use of this mobile phone license? First of all, it represents the symbol of licensed products. Second, it gives each licensed mobile phone a unique ID card. Third, control the number of mobile phones entering the market and determine the price of mobile phones. So as long as it does not meet any of the above conditions, it is parallel imports. Parallel imports in the domestic market are divided into four categories. The first is the smuggling machine, which has the best quality and the most expensive price among all parallel mobile phones. The second category is the labeling machine, which has the second highest quality and is made by some foreign manufacturers or other enterprises with technical strength in an underground factory in China to make profits. The third category is the assembly machine, and the quality is again. This kind of parallel machine is imported by some manufacturers, which produce their own accessories like building blocks and then piece together and weld them together. The fourth category, with the worst quality and lowest price, is a pure refurbished machine, like Sony Ericsson T6 18. Just change the screen, change the shell and brush the mobile phone system, and T628 will be produced. Because the price difference between the two mobile phones is about 500, it is profitable, but the quality is very unstable. Generally, as long as the purchase point is a little more formal, the parallel imports we buy are all Class I parallel imports, and the quality can be assured. This kind of parallel imports are smuggled goods from abroad, with novel styles (even styles and colors that can't be bought at home) and high quality, and can be brushed manually, so the function and quality may be better than licensed goods. (You can check the mobile phone software version through the engineering mode) Moreover, it is tax-free because it enters China in batches or by other means. The other three categories are generally not for their own needs, unless they are bought in too informal places, they are unlikely to buy them. So what are the benefits of buying parallel imports? In addition to the price factor and the above reasons, it is more important to provide parallel maintenance in China at a low price. For example, Sony Ericsson, a new high-end mobile phone on the market now, costs more than 6,000 yuan, while parallel imports only cost more than 4,000 yuan, with a price difference of more than 2,000 yuan, while the price difference of general mid-range phones is more than 1000 yuan, especially Samsung's. However, the domestic maintenance and upgrading costs are generally only from 20 yuan to 50 yuan, so it is tempting to buy parallel imports. If users buy mobile phones for practical purposes, then parallel imports are a more cost-effective choice for you. (But please note that although our laws are not perfect, this kind of behavior still has legal responsibility. What are the advantages of buying licensed goods? First, the licensed goods are definitely three guarantees, so if there is a problem, you can guarantee it for free and upgrade it for free. (Not only computers are upgraded, but also mobile phones are frequently upgraded. Upgrading may make the phone run faster and improve some bugs. ) enjoy all the services of all chain stores and maintenance points in the country. Moreover, licensed mobile phone batteries are also licensed, with guaranteed quality, stable software operation, good compatibility and smooth downloading of various programs. If you particularly like a mobile phone, buying licensed products is your best choice. Many people think it is "licensed" when they see that Macao and Hong Kong all say original goods. This is a wrong concept. I said at the beginning that the definition of parallel imports depends on where it is defined. Hong Kong and Macao licensed goods are only called licensed goods in Hong Kong and Macao, but they are parallel imports in China. Because these "licensed goods" from Hong Kong and Macao have no formal channels to enter China, and they have not paid taxes and labels, there is no doubt that these parallel imports from Hong Kong and Macao are genuine in China. You can open the phone case and have a look. Domestic licensed products have a small label such as "network access permit", but licensed mobile phones bought in Hong Kong and Macao do not have this label, and this label is also the "ID card" of licensed mobile phones in China. Similarly, licensed goods bought in China are also called parallel imports in Hong Kong and Macao. Therefore, the "licensed goods" bought here in Hong Kong and Macao did not have three guarantees when they returned to China, and they must return to Hong Kong and Macao for free maintenance and upgrading. Similarly, no matter how the "licensed" mobile phones outside China reach China, they are all parallel imports, while the licensed ones in China are parallel imports outside China. I believe many people will say that I will take good care of my mobile phone when I buy it, and I won't ruin it if nothing happens. It is generally unlikely to be repaired. Others: Over time, the LCD screen, cable and keyboard of the mobile phone will wear out. Even if everyone is well maintained, the upgrade of the mobile phone cannot be completed, and the benefits of the upgrade are self-evident. Of course, some people may say that they will use the mobile phone after buying it, and there is no special requirement for upgrading. Of course, it depends on personal needs. Many people complain that Sony Ericsson's T6 18 and LG series mobile phones send short messages too slowly, and some mobile phones will frequently crash and have software failures, especially the new ones. At this time, upgrading and maintenance are particularly important. It should be noted that although parallel imports are cheap, they are only relative. It is generally recommended to buy high-end ones, which can be much cheaper. If it is a low-end mobile phone, the price of parallel imports may be higher than that of licensed products. Hong Kong's mobile phone market is bigger than many places in Guangzhou, Shanghai and Beijing, and it deserves to be a shopping paradise, but there are also a lot of inferior products, especially the machines in Golden Computer City and Temple Street. I suggest you be careful when you buy it. It's better not to buy it there. In addition, it should be noted that mobile phones purchased by Nokia in Macau or Hong Kong can enjoy free maintenance and upgrade at designated repair points in the Mainland with small receipts, but only at their designated "repair points"! But it's also good. You can buy parallel planes and enjoy licensed services, but please remember to take the invoice and warranty card and don't lose it. Besides, except for a few mobile phones such as BenQ, which are licensed in Hong Kong, they should all be in traditional Chinese. If you see the "licensed" simplified Chinese, please be sure to note that the machine may have manually refreshed and changed the software. From the point of view of free maintenance, it is worthwhile to buy licensed products in China, because you can go to Zhuhai to repair or upgrade your mobile phone in Macau, and you can also go to various maintenance points when you return home. And if you buy parallel imports in Macau, you must get them in Macau and Hong Kong if you need free maintenance or upgrade in the future. However, if you are not particularly picky about the functions of mobile phones and buy mobile phones with good reputation, such as Nokia and Sony Ericsson, then choose a parallel product. After all, you may never need to upgrade and maintain. So how to choose parallel imports and licensed products depends on everyone's personal preferences. I say so. Do you have any ideas about parallel imports and licensed products?