买二手手机要注意什么（What should I pay attention to when buying a second-hand cell phone）

买二手手机要注意什么（What should I pay attention to when buying a second-hand cell phone） 买二手手机要注意什么(What should I pay attention to when buying a second-hand cell phone) In my personal experience, first of all, to find a relatively high degree of credibility, these people are often professional shop, communication is convenient; secondly, it is best to ask him to sell the machine's motivation, do business resale or update their own machines, buy a mobile phone to take the risk of stealing but relatively large; finally, whether or not we can trade face to face, although not completely believe their own eyes, but some of the material here to help you find, should be helpful: buy a second-hand mobile phone to see the appearance of new knowledge is not buy eighty percent for shell, even the screen protective film didn't tear down can not even buy the. Too old shell paint too serious or cracks which can not be taken into account, to buy their own money to suck after shedding so worth buying. The secondary should pick a little scratch this is definitely not the best general mobile phone no scratches fade when used with scratches are normal to buy from the appearance, look at the mobile phone corner there Shuaiguo traces, obvious feature is the corner was broken deformation. I want to ask the appearance of parts is the best going even buy some box manual invoice that is best, but not to see the mobile phone, ran to take it to buy a new no difference what. The main test mobile phone battery off to see a few stickers, are generally 3, machine code and network license, there are various communications companies posted, generally the Samsung mobile phone, often in place with a screw to remove the paste, paste has not looked at several. If there is, in accordance with *#06#, with the bar code with the machine string code is not consistent, if it should have been too big a problem. The hardware test finished with a premium card you have the best time to buy the phone at the beginning on the telephone, to your relatives and friends play in a call to attention when there is no intermittent phenomenon, must make enough for 1 minutes, it is better to find problems. Call no problem the shock, look at the big bell, if small voice that might be in the water, but not absolutely there are many phones are small, can try a try for a while, so that the machine can be found playing hot machine cable is not a problem. Line contact is not good that the screen will have effects often appear in the standby screen when no big problems show that this is not really annoying. Try not a key is agility, if the machine is not what problem that everything is normal, right before you buy what is best to look at the mobile phone forum, mainly to see how to distinguish what are the disadvantages of water machine. Taboo two to buy second-hand mobile phone, one is to buy the Department of fake parts and put all sorts of things together, are not equipped with original goods; two is the mobile phone is original, but it is used, use for a while found serious internal injuries, and finally know cheated. Therefore, in order to avoid the occurrence of the above situation, it is necessary to learn a few tricks when buying a second-hand mobile phone. According to "*#06#" check for IMEI code, in fact, each cell phone has a "no two" identification code - "international mobile equipment identification code", referred to as IMEI. This code represents the mobile phone information, to see just type "*#06#" can be in a standby state (applicable to most types of mobile phone). Buy a second-hand mobile phone to see the appearance of new knowledge is not buy eighty percent for shell, even the screen protective film did not tear down cannot be bought. Too old shell paint too serious or cracks which can not be taken into account, to buy their own money to suck after shedding so worth buying. The secondary should pick a little scratch this is definitely not the best general mobile phone no scratches fade when used with scratches are normal to buy from the appearance, look at the mobile phone corner there Shuaiguo traces, obvious feature is the corner was broken deformation. Improving the appearance of finished ask the best parts is going even when buying some box manual invoice that is best, but not to see the mobile phone, ran to take it to buy a new no difference what. The most important test cell phone, remove the battery to see a few stickers, usually 3, The machine itself bar code, network license, as well as the various communications companies posted, generally on these, Samsung mobile phones are often stuck in the place of a screw do not let go of the paste, and see a few stickers are there?. If there is, in accordance with *#06#, with the bar code with the machine string code is not consistent, if it should have been too big a problem. The hardware test finished with a premium card you have the best time to buy the phone at the beginning on the telephone, to your relatives and friends play in a call to attention when there is no intermittent phenomenon, must make enough for 1 minutes, it is better to find problems. Call no problem the shock, look at the big bell, if small voice that might be in the water, but not absolutely there are many phones are small, can try a try for a while, so that the machine can be found playing hot machine cable is not a problem. Line contact is not good that the screen will have effects often appear in the standby screen when no big problems show that this is not really annoying. Try not a key is agility, if the machine is not what problem that everything is normal, right before you buy what is best to look at the mobile phone forum, mainly to see how to distinguish what are the disadvantages of water machine. Taboo two to buy second-hand mobile phone, one is to buy the Department of fake parts and put all sorts of things together, are not equipped with original goods; two is the mobile phone is original, but it is used, use for a while found serious internal injuries, and finally know cheated. Therefore, in order to avoid the occurrence of the above situation, it is necessary to learn a few tricks when buying a second-hand mobile phone. According to "*#06#" check for IMEI code, in fact, each cell phone has a "no two" identification code - "international mobile equipment identification code", referred to as IMEI. This code represents the mobile phone information, to see just type "*#06#" can be in a standby state (applicable to most types of mobile phone). Take Ericsson S868, for example, the base code IMEI is 5200XX-71-0375XX-6-05. 5200XX is the mobile phone model number, 71 for the production country code, 0375XX for mobile phone number. The whole string of numbers should be in line with the number behind the fuselage, otherwise this phone is definitely fake. Nokia mobile phone password, in fact, each mobile phone manufacturer's identification password is not the same. Here, in the case of NOKIA 5110/6110/8110, type "*#0000#" in the standby mode. The screen displays as follows: v4.73, 22-04-98, NSE-2. The first line represents the software version of the phone, and the second line shows the date when the software is written to the phone, and the third line indicates what type of cell phone is. NSE is the code number 5110 or 6110, 1 is 5110, and 2 is 6110. Press *#92702689# to show five options; 1.Serial No.: the phone's body number, similar to the use of IMEI. 2.Made: the handset manufacturing date, such as 0798, means that this machine was produced in July 1998. 3.Purchasing Date: the date of purchase, users can enter their own, but only enter once. 4.Repaired: records of maintenance times. 5.Transfer User Data: the software version used to upgrade the phone can be ignored. The mobile phone "sitting" aircraft has records on Ericsson phones by "* * *" (not all Ericsson models support this function), you will see the following shows (for example): CXC125131 PRG 9811251213. The picture above means that in November 25, 1998, the phone took the "12:13" flight number CXC125131 and was shipped from production to destination. Learn these small cheats, you can have more time for the mobile phone, mobile phone is not afraid of being cheated! QD is selling fewer units now, and now we can't find anything new, and the second hand is very tight 1, we all know that QD classification: the European mainstream, water, beauty water and cargo (Hongkong machine printed invoices for Hong Kong), the four version. Mainly based on the different geographical areas listed. What do I recommend?, We'd better buy second-hand licensed goods, if you have the best warranty, the mainland is licensed in our mainland listed formal products, is subject to NOKIA warranty (three package period). The second is recommended by the European water, water quality is the most recognized European game player and all aspects are excellent version, European Water suggests that the NOKIA listed in mainland Europe products in the new machine with the mainstream price 300 yuan, so the price is very high. Followed by the United States, water and Hong Kong goods, the United States and China because of the water network frequency gap between the United States and the United States version of QD in some cases there will be no signal problems, such as in the suburbs, basements and so on. Hong Kong cargo is known as the Asia Pacific version in NOKIA, and it is said that the NOKIA version of the Asia Pacific version is the most unstable, but I have not been in touch with it, so it is not good to evaluate. 2, the selection of licensed goods: preferably in the warranty period. If you buy second-hand licensed, in the purchase must remember to purchase the original invoice, as well as warranty cards, these are the most obvious evidence of mobile phones. Although QD can check the serial number through the warranty, but in some cases still need to issue invoice warranty card (such as the return to factory maintenance). Standard: BL-6C, ACP-12C, HS-7, 64M memory card, manual, memory card introduction, PC kit, CD, invoice and warranty card. Identification method: keyboard input, the original is there, but not after carved up, # key "in" located in the central # key; permits network; under the network license white label on the bottom is "NOKIA Capitel Communication Co. Ltd.; complete formal invoice, warranty card. The above is the identification of licensed some simple methods, if not assured, you can also go to the nearest KF staff to help detect, after all, a lot of NOKIA KF, the warranty card on the address.
Ou water: because there is no warranty, so the most important thing is to look at the fineness, to see if the screen is too dusty, and more if it has opened the front shell, and even dismantled the machine. The early QD keyboards of European water did not have strokes or were engraved on the back. They were clearly distinguishable. When buying, the basic business is not to match cards, or send game cards, so players in the purchase of European water after QD will buy their own large capacity memory card, so buy before you ask. Identification: post is the origin of the "MADE IN FINLAND", the serial number at the beginning of 353359". Basically, these two points can be judged as European water. The United States and Europe: the basic situation of water water almost, the two versions are basically a single charge a headset, had a lot of friends said through the packaging judgment, is not it, and even can be said as early as a year ago can not, there is no basic original packaging, are printed on the mainland private printing factory. Identification: origin of "MADE IN CHINA", the serial number beginning with "010"; after the standard, so there is a business to the water called large scale machine, water is a small European standard. Hong Kong goods: basic is difficult to see, accessories are also single electric, single charge headphones, parallel imports basically do not deserve the storage card, the origin of the subject is "MADE BY NOKIA", this is a simple one can. Also note that in the selection of the time, the screen wallpaper canceled, with a white background, see if there are dead; observe more points, to see whether there is any shadow that mobile phone had been in the water, or a tide. Try the button one by one to see if there is any bad contact, whether or not to jump slowly or not, and listen carefully to hear if there is any noise. Note that the shell, there is no trace of friction, QD shell quality is very good, so after the fall, at most on the shell to leave some scratches, QD aprons and not the original one can distinguish, so not to mention. QD is the basic operation of the battery, all no batteries, what to do, NOKIA for the QD with a battery capacity of 1070/1150 is BL-6C, Ma, no standard battery capacity of smuggled goods, is the origin of Japan or Hungary, to buy time to observe carefully, look at the contacts, preferably connected to the charger, charging can be detected. Make a phone call, Listen to the sound of the receiver. (NOKIA the receiver has a basic noise), turn on the speaker, plug in the headset, and try as much as you can. Try the shock again. What's the recording?.

Check the serial number QD operation is: standby input "*#06#", to see whether the mobile phone serial number and body back on the invoice and warranty card; QD query version of operation is: standby input "*#0000#", now more stable version for 4.24 and 4.10, the latest version is 5.

QD from the outside is difficult to see whether the removed or repair traces, we can put the battery out from behind, to smell, to see whether there is a pine scent, if there should be a repair, the motherboard has inside welding. Smell from the back to see if there is a loose scent, if any, it should have been repaired, and inside the main board has been welded. In the secondary market, to buy mobile phones should be learned. Because the assembly machine (commonly known as version machines) and refurbished machines flooded the secondary market phenomenon is very serious. Version of the machine is the purchase of mobile phone parts manufacturers manually assembled, looks very new, but the quality is particularly bad, after buying the normal use of time can only be calculated in days as a unit. Selling machine for quxinyuren version profiteers will claim that this kind of mobile phone is to deceive consumers smuggled goods, the purpose of. The current version of the machine in the secondary market are: Ericsson (ERICSSON) T29sc/T28sc, NOKIA 3310/3330, SIEMENS (SIEMENS) 3508i/3518i, Motorola L2000www/V998++/V8088, MITSUBISHI and other small. Faced with so many versions of machines, consumers how to distinguish it? 1. price Because the parts of the edition machine are the early product, the quality is also very bad, and at the same time attract more consumers to buy, so the price is very low. Such as Ericsson T29sc edition machine price is only 530 yuan (new machine price is 1250 yuan), Motorola V998++ version machine price is 760 yuan (new machine price is 1700 yuan). If encountered such a low price and the business has been called "parallel" phone, basically can be determined as a version of the machine. 2. appearance Version of the shell used by the machine is imitation of the original, so before and after the two parts of the mobile phone shell is easy to close, not tight, leaving a lot of gaps, such as SIEMENS 3508i. 3.IMEI code Version of the motherboard is assembled through a variety of channels, the source is unknown, so the version of the machine does not have its own IMEI code. For example, NOKIA 3330 edition machine, when typing "*#06#" query IMEI code, the phone will only display a string of question marks. Ask, this kind of mobile phone use still feel relieved? Refurbished machines are businesses will be the acquisition of the old mobile phone shell, antenna, keyboard and other wear parts replacement become to buy accessories, or update the old mobile phone in time related data such as production date, and then get on the market. Businesses generally do not call this cell phone a new machine, but will say that the phone is very new. Refurbished machines can naturally bring higher profits to businesses. So how do consumers identify the refurbished machines? 1. appearance Due to the long plug of charger plug, the refurbished charger charging interface will be difficult to eliminate the black scratches. From this point, you can compare directly to determine whether the refurbished machine. Some refurbished machines can also be judged from the feel of the keyboard. For example, Samsung (SAMSUNG) SGH-A188 refurbished machine keyboard used to feel rough, and pressed feel particularly stiff. There are also some refurbished machines that can be judged from the shell. Such as gold version of the NOKIA 8850, because the shell is not easy to buy, so profiteers only through the re painting to solve the housing renovation, but the spray paint color is shallow, slightly yellow, easy to judge. 2. software Many consumers in the purchase of second-hand mobile phones, they will enter the corresponding command on the phone, query the production date of the phone, the production date is too early, two mobile phones is not much money. So it's not enough to just renovate the shell. Profiteers generally the acquisition of the mobile phone body within the production date by special instrument to a new date. How can I check if my cell phone has been changed? Different types of methods are also different. Such as Motorola V998++/V8088, in the standby mode press the "#" button for 4 seconds or so, if a rectangular pattern watches out words on the screen, then this is the updated information to buy refurbished machines, the normal use of time not more than a month; besides this, a method is made in the GSM900MHz and mobile phone GSM1800MHz two channels (that we often say that the line 1, line 2) - updated data switching between Motorola mobile phone will have a channel to be locked; and NOKIA 8210/8250, the purchase when the first input command "*#0000#" query production date, enter "*#92602689#", check second, and check the production front to date the contrast, if the two time gap is too big, so it can be concluded that it is a refurbished machine updated data. 3. other Love tricks on profiteers accessories. Mobile phone to purchase the original battery if the time is not long, the high-quality batteries basically will be replaced by profiteers low-quality batteries and impersonate the original battery sales. This situation is generally very difficult to avoid, so consumers in addition to check when buying batteries are split over the traces, the best buy a new battery in the mobile phone after buying. When buying a second-hand mobile phone, try to make sure that the call is clear and clear. If the voice is big or small, that is, when the signal changes greatly, this cell phone is also likely to be a refurbished machine. Another point is the friends do not pay much attention, is the best buy mobile phone with a charger, try to charge a mobile phone, and the best long charging time, generally in more than 10 minutes. Because there are many refurbished machines, such as Ericsson, Samsung, SGH-A288/A300 and other charging time is slightly longer, it will power off. This is also a very effective way to judge the refurbished machine. Said so much, I believe that all the friends of the secondary mobile phone market has a general understanding of it. In fact, as long as the master of the method, in the secondary market is not so easy to deceive. By then, friends who love mobile phones will find that there are many cheap and useful things in the secondary market. 1. mobile phone IMEI, network license, scrambling can now be modeled, not easily believe, can refer to the Ministry of Information Industry joint website three number query authenticity 2., now mobile phone sellers even mobile phone invoices, warranty dare to imitate. The safest method is to write to the invoice with the assignor. Some shopping malls check, and if the assignor does not dare, it must be false. As long as it is a large shopping mall, this approach is more insurance. As for the regular invoice, there must be a problem. Please pay attention to "formal"". 3. now second-hand mobile phone shady too much, when the transaction requirements and vendor with major brands to the customer service center to detect the premise and then decide whether the transaction is very important, this is mainly for the sale of second-hand mobile phone dealers for revision. 4., mobile phone vendors are fake individual users, saying that since the use of mobile phones sold to paralyze everyone. The 5. claim is a new mobile phone transfer with particular attention to the mobile phone vendor is a trap, commonly used method is replaced the old machine shell or machine for the new shell, to earn HeiXinQian high. 6., buy a little trouble, do not rush to buy, after a problem, regret unceasingly These are some of the things I've collected from the Internet. Here are some of my own suggestions: First of all, before going to the test machine, it is recommended to know more about the machine you bought. Look at the model you want to buy. When did you start listing? What's the price of the new machine now? Is it on sale yet? Sell mobile phone to the person you are what time to buy, buy too long, you scored his price (shut down the machine, generally do not give him too high price, but the vast majority are repaired, renovated, if his machine in 3, 4 years, or the machine a new word, you will notice!) to connect the computer to transmit data for a friend to drive the machine (generally), or, When you want to connect to a computer to synchronize data, it is troublesome. If I can't find it, I should ask the person to buy a compact disk or drive directly. There's no need to support the PC Suite In the trial time, should take the battery out and check the IMEI code and IMEI code and input *#06# contrast (above mentioned here, I do not long winded), followed by a look at the old and the new, the shell and the battery bin contrast, shell than battery compartment is also new, it is certainly for housing! Then smell it from the battery and see if it has a loose scent. If so, it should have been repaired, and the inner main board has been welded. If he explains that the machine has been broken, you can also take a look at some cell phone repair shops and ask them to see if there are any problems. When the test functions are best try, if you are not in a hurry to try the best for a long time, I try to charge a mobile phone, and the best long charging time, but also ask the mobile phone password, including software password, password and so on (sure, ask, or who will tell you?) Let's put the song on, too. Try the trumpet. Ask how long the standby will take and how long it will take Finally, tell me the price, and tell me some shortcomings