At present, there are two kinds of refurbished laptops in the market, one is refurbished by notebook manufacturers, and the other is turned over by some underground workshops.
let's take a look at the notebook computers refurbished by notebook computer manufacturers. At present, the original refurbished notebook computers in the market are more common with IBM brand. Because these laptops were renovated by the original IBM factory and then put into the market, the quality and appearance of the products are very close to brand-new laptops, so ordinary consumers can use them with confidence. However, this kind of original repair machine usually only has a one-year warranty service, and it is much cheaper than a brand-new notebook computer in terms of price, so if consumers accidentally buy it back as a brand-new notebook computer, it is estimated that merchants will definitely steal it. In fact, for this kind of original refurbished notebook, notebook manufacturers have long left a mark on the notebook in order to prevent the refurbished notebook from confusing with the brand-new notebook and disrupting the market. As long as we pay attention to the following places, we can easily identify their true identity.
The most commonly used method of notebook renovation is repainting. Now the painting technique is getting higher and higher, but no matter how high the painting technique is, it is difficult to deal with the logo on the top cover of the notebook. No matter which method is used, it will leave traces here, which has become one of the most effective means to distinguish the refurbished notebook.
how can I identify a refurbished notebook through the top cover? First of all, big brand notebooks such as IBM and TOSHIBA with no logo on the top cover are basically refurbished. Because the logo part is too hard to handle, many JS with low skills simply take off the logo and make a net profit. Usually JS also gives an excuse that there is no trademark in the first place. In fact, it is impossible for these big brands of notebooks not to put logo on the top cover. The reason why the brand logo is gone is entirely the hands and feet of the merchants themselves. Generally, this phenomenon is common in notebooks with metal casings.
after seeing this, you may ask, can't the logo be pasted after painting? In fact, re-posting the logo is far from as simple as you think. Because the strength of the merchant's own post-spray painting can't be compared with that of the original factory, even if the logo is glued on the post-spray paint surface, there is no way to guarantee its firmness, and it may fall off when touched.
the logo of some notebooks may be pressed on, or it can't be removed for other reasons. In this case, JS usually adopts the covering method for painting. The specific method is to cover the logo with transparent glue and then paint it. After painting, remove the transparent glue. However, the cover method has a big disadvantage, because the cover can't just cover the LOGO, either more or less, so there will always be some marks on the edge of the logo. In addition, because the new and old paint layers can't be combined so well, if you look closely, you will see that there are two layers of paint, and even if you polish it before painting, it will leave some traces near the logo.
The goods that merchants get from wholesalers or agents are all unpacked, and the boxes will be affixed with the original factory seal, but it is not necessary to pursue the unopened machine, because after the goods arrive, merchants often unpack and inspect the goods, so the original factory seal will be broken, especially in some small shops with less goods. You can also book the original packaging machine unopened from the merchants, but not many merchants are willing to accept such a reservation. The packaging of the main engine and power supply may be incomplete (because the machine needs to be inspected), but it is suspicious if the packaging of those small accessories is incomplete, because there is really no need to take it out in the plastic bag that can be seen at a glance.
a. carefully observe whether there is more dust in the keyboard gap and screen frame, as well as the air outlet. It is impossible for the used machine fan not to turn, as long as the fan runs, it will bring in dust.
B. check whether the keyboard keycap and mouse have worn marks. If they are used for a period of time, they will inevitably leave shiny marks on the surface.
C. Remove the battery, and check whether there are fingerprints on the back of the machine covered by the battery. Usually, the back chassis of notebook computers will be coated with metal, and a finger print will be printed when you touch it, and it is difficult to erase it.
D. Check whether the operating system is still unpacked. The original operating system is unpacked, and it will automatically enter the registration screen when it is turned on, or it will require you to enter the registration code to operate normally, otherwise it will always be unregistered OEM. Of course, some third-rate manufacturers can have a complete operating system when their machines are turned on, which reflects the low technical level of this manufacturer from one angle. Generally, JS disdains to sell his parallel imports, because the problems that follow can annoy him to death, hehe ... < P > First, as mentioned earlier, as long as it is unopened, there will be much less trouble.
second, choose a regular storefront. Generally, there will be authorized dealers on the official website of manufacturers, which is more reliable.
third, pay attention to the heat dissipation vents, where dust is most likely to be found and it is not easy to wipe.
four: pay attention to whether there are signs of wear on the foot pads, and all kinds of interfaces, especially those of locks, where the prototype will be locked to prevent theft.
five: check the production date, and the closer it is to the time when you buy it, the better.