Second, Lenovo official website self-service serial number inquiry;
Third, the valve should check and identify the serial number of the after-sales 400 customer service phone.
Question 2: How to check whether the newly bought laptop is original when it arrives? The 70-minute steps are as follows:
1. Before unpacking, be sure to check whether the box is in good condition. Sometimes the damage of the box is not necessarily a problem, but the warehouse may be damaged by dampness and improper transportation, so don't relax your vigilance before unpacking, especially friends who are going to buy books as gifts. If the box is in poor condition, you have reason to ask for a new machine.
2. Check the model and configuration of the machine with the help of the label on the side of the packing box. Before unpacking, you need to check the product model. When the distributor transfers notebooks from the warehouse, we need to simply check the product model and configuration. Generally, there are related contents on the side of the box, such as Aspire 5740DG-434G32Mn. Experienced netizens will calculate the basic configuration according to this string of letters. For example, this product is equipped with Core i5-430M processor, 4GB memory, 320GB hard disk and "M" at the end.
3. Sometimes we can judge the configuration of the notebook by its model. Reading the seal and checking the model are the basic work before unpacking. You can't start unpacking until it is confirmed. Don't wait until you open the box to find that the merchant "took the wrong machine", but the middle match has become a low match or a high match, giving the bad merchant a chance to transform.
4、? Pay attention to unpacking inspection. The first step in unpacking is to check whether the seal is intact, which is familiar to many consumers. It is worth noting that some notebook boxes have sealing designs at the top and bottom. Sometimes we only pay attention to the top one, but we often ignore the sealing at the bottom. In fact, the notebook can also be taken out from below, which needs more attention.
5. Before tearing the seal of the packaging box and the transparent tape, observe whether the surface is flat, and pay attention to whether the adhesive part is uniform after tearing. Some dealers have blown off the seal with a hair dryer and then re-adhered it with double-sided adhesive, so pay attention to see if there are any traces of artificial adhesion. Some models have transparent tape, and there is a brand LOGO under the seal, which also needs inspection. (Some brand products have no tape design, which does not mean that they have been dismantled. )
6. It is necessary to carefully check the seals at the top and bottom of the packing box. Some products are designed with double packaging boxes. After the above steps are completed, we can open the box of the notebook. In addition to being careful, it is best to choose a better unpacking environment, a desk without sundries or a clean desk.
7. Carefully check whether the accessories in the box are complete. After unpacking, we don't need to pay attention to the host first. First, take out the contents of the box and lay it flat, and check whether the items in the box are complete according to the packing list (not all notebooks have packing lists). If one of them is missing (warranty and three-guarantee certificate, instruction manual and CD-ROM, standard lithium-ion battery and power adapter), at least it can be said that the box has been unpacked or boxed.
8. Three-code check in notebook purchase. Now many electronic products have "three-code verification", so what is three-code? The three codes of notebook computer refer to the SN code on the product packaging box, the SN code on the self-adhesive label at the bottom of the host computer and the SN code on the three-package certificate. The three codes of the brand-new machine must be unified. This point needs to be remembered by friends who buy the machine for the first time, so as to avoid buying machines with unknown sources and affecting the warranty service. After checking the three codes, we can concentrate all our energy on the mainframe. After all, this is a big piece in the box, and many details need to be checked. At present, the top cover of notebook usually adopts piano paint coating process or frosted feel material. For the former, it is necessary to carefully check whether the top cover is printed with fingerprints, while for the latter, it is necessary to check whether it is worn.
9. Don't give up the details of the fuselage. Configuration is a parameter that reflects product performance. As an aspect of ease of use, interface layout attracts more and more users. In fact, it is also essential to check the interface when checking. Among them, USB2.0 interface and computer keyhole are the most commonly used. In the noisy computer city, in order to improve the operation experience and prevent theft, some merchants will use external mouse and computer lock, which may cause some wear and tear on the notebook interface, so more attention should be paid.
10, various interfaces around the fuselage, whether there are scratches on the gold finger, is the basic method to test whether the battery is brand-new. Although most of the prototypes in the store are external power supplies, there are also a few molecules that have problems. After a period of use, the cooling windows located at the side and bottom of the fuselage ... >; & gt
Question 3: How to tell whether a laptop is genuine or not? Check the serial number on the label (you can also check it in the brand official website).
Carefully check whether the serial number on the outer box of the notebook computer is consistent with the serial number on the body. The serial number on the fuselage is generally on the base of the laptop fuselage. When checking the serial number, check whether the serial number has been changed or pasted again. In addition, when starting up, you should first enter the motherboard BIOS of the notebook computer and check whether the serial number in the BIOS is consistent with the serial number of the body. The three numbers are the same, and the source of the laptop is basically no problem. If there is any inconsistency, it is all parallel imports or assembled goods.
2. Outer packaging
First, check whether the outer packing is complete and correct. After unpacking a notebook computer, there are also power adapters, related accessories, product manuals, warranty certificates (the number is the same as the notebook number), warranty record cards, etc. In addition, pay attention to whether the operating system recovery disk and installation disk are consistent with the operating system on the machine. Look, this series of checkpoints is difficult to forge, so be sure to keep your eyes open and remember to look carefully when buying.
Check the appearance
Check the appearance of the notebook computer, whether there are bumps, scratches, cracks, scratches, bad spots, ripples on the liquid crystal display (LCD) and whether there is paint peeling on the screws. Try to find a machine without bad spots when purchasing, because the bad spots on the LCD screen may spread gradually. Appearance is also important. If you buy a new thing with scratches, it will definitely look uncomfortable.
Check the battery
It should be noted here that the new notebook battery should not be charged more than 3 times, and the power should be less than 3%. Moreover, when testing the machine, the dealer will not plug in the battery, but connect it directly to the power socket. Too much electricity or too many times of charging and discharging proves that it is at least a machine that has been used by people. Battery management software can also tell how many times the battery has been charged. This must be checked on the spot to prevent future trouble.
Question 4: How to check whether the notebook is genuine? Except for a few domestic brands that have seals on screws (in fact, seals are easy to copy and depend on the outer packaging), general brands can only look at the outer packaging. For big brands like Hewlett-Packard, Lenovo, Acer, Asus and Dell, it is useless to just look at the packaging seals, because there are counterfeit seals, depending on whether the seals have traces of secondary sealing (especially the two-layer seals). If there are traces of secondary seal, it is not excluded that the manufacturer upgrades the overall configuration. In addition, like some small brands, you don't have to worry about whether it is the original package, because there are many returned machines, even the original boxes may be refurbished by the manufacturers.
According to my 2 years' experience (not too long for reference only), I have summarized several points, but I must analyze the reasons myself, not just listen to the salesman's explanation.
1. If the outer package is complete and the seal is single-layer, pay special attention to the seal at the bottom. In addition, see if there is a large area of glue overflowing on both sides of the seal. JS may blow off the seal with a hair dryer and stick it with glue.
Several machines of the same model are put together. If the outer packaging paper is obviously different, be careful of the outer box that may be fake. Also remind ASUS, Acer, etc. If you only see one floor, it must be wrong.
3. After unpacking, pay attention to whether the plastic bag used by chartered flight is flat, whether the power cord reel is neat, and especially whether the binding wire has been disassembled. Check whether there is handprint dust that should not appear on the touch panel of the screen, and whether the rubber seat at the bottom is dirty.
Don't believe the salesman said that the machine with pre-installed system is new as long as it is not activated, because it is easy to return to the factory state. On the contrary, if the machine without pre-installed system is turned on, if only one line of English prompt is displayed instead of DOS interface, be careful.
5. Then, check whether the screw has any traces of solidification. I don't need to say this ~ it's not right when the black screws turn white ~ but now businesses are screwing them with plastic wrap, so look carefully. There is also a keyhole.
If the above points do not appear, it can only prove that the probability that this machine is the original factory of chartered flight is above 90%, because JS is too strong now. Some businesses can cooperate with manufacturers to make fakes after sales (generally small brands are special after sales rather than direct sales).
As for real parallel imports, it seems that only the latest models that are not listed in China will be available, so you don't have to be so avant-garde.
Of course, there are foreign garbage and refurbished machines ~ ~ This kind of machine, you can find something wrong by looking through the manual and warranty card, either there is no Chinese, or it is particularly rough, without illustrations and typos.
Special note: All the above are the original methods without online (or telephone) authentication ~ ~ Is it safer to renovate goods or register online? For example, when selling ASUS for the second time, the previous buyer has already registered, and there will be a prompt when registering.
Question 5: How to see if Dell computer is genuine? Dell machines have a service number on the back. After logging in to the Dell website, you can use this service code to check the warranty information of the machine. You can know whether this machine is new, when it left the factory and how it is configured. Address: Dell
Question 6: How to check whether the Dell computer is genuine? howdy
Every Dell computer has a service tag number. Just write down the number and find the time configuration here. There is also a look at the machine seal, some JS will change the memory in the computer or something, so you should look carefully.
Dale, check the serial number website.
supportapj.dell/...~tab=2
Question 7: How to tell the authenticity when buying a computer? There are several ways to identify whether the computer is original or not.
1, generally new computers are pre-installed, but you need to set them yourself. If all the computers you buy enter the system when you turn them on, they must be old.
2. When buying, buy from a place with genuine guarantee, such as official website, or a large supermarket.
3. Generally, there is a service code on the back of the notebook. Just like the mobile phone barcode, the maintenance period can be found in official website. If it is genuine, you can find your notebook information in official website. This service code is unique, one for each book, just like the ID number, there will be no repetition. This is the best way to distinguish the authenticity of the book.
Question 8: How can I tell if my computer system is genuine? tech.sina/focus/08_WGA/index.shtml
This is the website of Sina. There is a "verification window" on the right side of the page.
Remind you that you can take a closer look at the special reports on the webpage and then verify them!
Question 9: How can I check whether my computer system is genuine? Mine is windows7 Ultimate. Right-click my computer, click Properties, and then see if there is a sign of genuine authorization in the lower right corner!
Question 10: How to check whether the notebook is genuine? Except for a few domestic brands that have seals on screws (in fact, seals are easy to copy and depend on the outer packaging), general brands can only look at the outer packaging. For big brands like Hewlett-Packard, Lenovo, Acer, Asus and Dell, it is useless to just look at the packaging seals, because there are counterfeit seals, depending on whether the seals have traces of secondary sealing (especially the two-layer seals). If there are traces of secondary seal, it is not excluded that the manufacturer upgrades the overall configuration. In addition, like some small brands, you don't have to worry about whether it is the original package, because there are many returned machines, even the original boxes may be refurbished by the manufacturers.
According to my 2 years' experience (not too long for reference only), I have summarized several points, but I must analyze the reasons myself, not just listen to the salesman's explanation.
1. If the outer package is complete and the seal is single-layer, pay special attention to the seal at the bottom. In addition, see if there is a large area of glue overflowing on both sides of the seal. JS may blow off the seal with a hair dryer and stick it with glue.
Several machines of the same model are put together. If the outer packaging paper is obviously different, be careful of the outer box that may be fake. Also remind ASUS, Acer, etc. If you only see one floor, it must be wrong.
3. After unpacking, pay attention to whether the plastic bag used by chartered flight is flat, whether the power cord reel is neat, and especially whether the binding wire has been disassembled. Check whether there is handprint dust that should not appear on the touch panel of the screen, and whether the rubber seat at the bottom is dirty.
Don't believe the salesman said that the machine with pre-installed system is new as long as it is not activated, because it is easy to return to the factory state. On the contrary, if the machine without pre-installed system is turned on, if only one line of English prompt is displayed instead of DOS interface, be careful.
5. Then, check whether the screw has any traces of solidification. I don't need to say this ~ it's not right when the black screws turn white ~ but now businesses are screwing them with plastic wrap, so look carefully. There is also a keyhole.
If the above points do not appear, it can only prove that the probability that this machine is the original factory of chartered flight is above 90%, because JS is too strong now. Some businesses can cooperate with manufacturers to make fakes after sales (generally small brands are special after sales rather than direct sales).
As for real parallel imports, it seems that only the latest models that are not listed in China will be available, so you don't have to be so avant-garde.
Of course, there are foreign garbage and refurbished machines ~ ~ This kind of machine, you can find something wrong by looking through the manual and warranty card, either there is no Chinese, or it is particularly rough, without illustrations and typos.
Special note: All the above are the original methods without online (or telephone) authentication ~ ~ Is it safer to renovate goods or register online? For example, when selling ASUS for the second time, the previous buyer has already registered, and there will be a prompt when registering.