What should I pay attention to when buying second-hand mobile phones?

If you are worried that changing your wallet frequently will be unbearable, the second-hand market is a good choice. However, the current second-hand market is not standardized. If you trade blindly, you will eventually hurt yourself. Here's to uncover the common tricks in the second-hand market, teach you some practical shopping tips, and make you a smart buyer. ◆ The difference between the second-hand market and the formal market In the early years, the second-hand mobile phone market was still very depressed, and only a few people were engaged in transactions. Later, due to the expansion of supply and demand, people specializing in second-hand mobile phone transactions appeared, and gradually formed a large-scale second-hand mobile phone market. Because mobile phones are relatively sophisticated electronic equipment, once damaged, it is very troublesome to maintain. At present, all the mobile phones sold in regular stores have three-guarantee cards issued by the state. Once the mobile phone is broken, you can find a seller or a mobile phone manufacturer to repair it. Buying a mobile phone in a regular store has a special invoice, which is conducive to future consumer rights protection. In the second-hand mobile phone market, it is basically impossible to buy a mobile phone with an invoice. But sometimes you can buy cheaper new mobile phones in some small specialty stores, but we have to put a question mark on these cheap new mobile phones. To be sure, some cheap mobile phones are parallel imports, which are quite reliable to use, but there are also many so-called "14 tips" and "refurbished machines"-some people engaged in second-hand mobile phone transactions "facelift" the bought second-hand mobile phones and take them to the counter to sell! Of course, this kind of mobile phone is cheap, but after problems occur, businesses either ignore it or run away, so be careful when buying cheap ones. Carefully identify "14 antenna". At present, there is a kind of mobile phone in the mobile phone market: the appearance is so new that even the packaging and accessories are complete that some unscrupulous merchants will sell this mobile phone as a brand-new parallel mobile phone, but most merchants call it "14 antenna". Careful observation shows that most of these mobile phones have slight traces of use. It turns out that in foreign countries, network operators have such a service: you only need to open a number in the network, sign a usage agreement, pay a certain phone bill every month, pay enough for two years, and give this mobile phone a trial period of 14 days. If you feel dissatisfied, you can cancel the agreement and return the mobile phone to the network operator. Since the 14-day machine has been tried overseas, it is not a new machine strictly speaking, but a "charger"; However, it is difficult for us to recognize it from the appearance. Because foreign network operators stipulate that mobile phones cannot be damaged during the trial period of 14 days, otherwise a certain depreciation fee will be deducted, so many 14 antennas can't identify whether they are new machines in appearance. Specifically, we should start from these aspects: 1, whether the packaging is worn out; 2. Whether the charging port and battery of the mobile phone are scratched, and whether the earphones and related accessories are unpacked; 3. Enter the mobile phone interface to check whether there are call records and address book records. Most of these mobile phones will be printed with the operator's standards (such as T-Mobile and Orange). ). Since the purchase price difference between 14 and the brand-new machine is at least several hundred yuan, you should be especially careful not to be cheated into buying a brand-new machine. At present, the common "14" models on the market are: palmOneTreo600, T-MobileSDA (Dopod 585) and OrangeSPVC500 (dopod 565), so you should be careful when purchasing. ◆ Be careful to change the shell and renovate the second-hand mobile phone. The pricing standard is mainly color. Some mobile phones have been used for many years, and their appearance is seriously worn. But after being transformed by professionals, it immediately looks like a new machine that just left the factory. The boss will probably tell you: "This mobile phone belongs to a friend, and I have never used it. Now that the new machine is sold as an old machine, my friend really can't bear it! " At this time, you must look carefully. The real new machine should be very new in tiny gaps such as earphone jack and charger jack, while the old machine has a lot of dust. Nowadays, almost all the mobile phones in the world can be replaced, especially the GSM phones of Samsung and Nokia. Almost all the parts in the second-hand market are free DIY! In particular, beware of those shoddy refurbished maintenance machines, and some even replace the motherboard. The price of a disassembled mobile phone may be quite different from that of a second mobile phone that is undamaged and trouble-free on the market. Generally speaking, the quality of an unrepaired mobile phone is much better. Whether the mobile phone has been opened depends on whether the screws on the back of the mobile phone have been scraped by a screwdriver. If the motherboard of the mobile phone has been replaced, the serial number of the mobile phone (you can see it by pressing *#06#) is mostly inconsistent with the serial number posted under the battery on the back of the mobile phone. ◆ Accessories should not be taken lightly, because most second-hand mobile phones only have the host when they enter the market, excluding accessories such as batteries, and a few original owners bring their own full sets of accessories. Some merchants take advantage of this, and sell some machines with complete equipment separately, making huge profits (because the original accessories are expensive even if they are used). If the mobile phone is received by a single machine, in most cases, the battery is also original, and it is profitable to replace it. In this case, the average consumer should ask about the mobile phone in advance, and it is best to ask the merchant to bring a fully equipped battery. Even if there is no battery, it must be original. Battery is the most important component that affects the performance of mobile phones, and it is also an important factor that affects the price of second-hand mobile phones. Therefore, when the merchant tells you that it is an original battery, you need to be alert and carefully distinguish it. Another important accessory is the charger. Most of the original chargers are exquisite and can be distinguished from the assembly. There is a trick. If you buy a second-hand mobile phone from abroad, see if it matches the plug in the target area. For example, Europe uses a charger with a big plug. Other accessories include headphones, synchronization cable, base, leather case, etc. These materials can be found clearly on the internet, so you have more chips when you buy them. It is very important to check carefully. The steps of careful inspection are very important. In addition to the appearance, you should also remove the battery and carefully observe the inside of the mobile phone, especially pay attention to whether the stickers of those manufacturers have been uncovered, whether there are traces of moisture, and whether the screws have been screwed (maintenance machines are more common). Some brands of mobile phones will also be labeled with soluble labels, which will dissolve as long as they enter the water. Don't buy a second-hand mobile phone without this label. Check whether the software of the mobile phone is the latest or most stable version. If not, you should ask the merchant to refresh. Install the SIM card and start the telephone test to see if the call is normal; Try whether the short message function is normal, whether there is simplified Chinese or garbled code will affect the normal use, and see if there is any Bug in the input method. For example, the parallel mobile phone of Sony Ericsson K700 may not be able to select the word "zh" when inputting it. It's best to bring a Unicom and mobile SIM card, because second-hand mobile phones are likely to have network locks, which are not compatible with a certain operator. Incoming call, outgoing call, short message, vibration, ringing, charging, etc. It should be carefully tested, and the keys of the keyboard should be pressed one by one to test the quality. If you wait until you go out to find that there is something wrong with your mobile phone, you can only admit that you are unlucky! User trading tips Today, with the rapid development of the Internet, many people will choose online trading, but due to the anonymity of the Internet, there are also many online scammers. If you buy a mobile phone online, you need to be careful not to pay first, because many people receive a pile of garbage. If the other party has concerns about payment after delivery, you can consider using the guarantee service of the auction website. The buyer receives the mobile phone, which will be confirmed after acceptance, and then the seller will receive the payment. If both parties are in the same city, it is safer to meet and trade. ◆ Other important tips to pay attention to in second-hand transactions include: First, since there is no three-guarantee provision for second-hand mobile phones, most merchants will not promise to return them, so it is best to find a reputable store and be careful when choosing the machine. And write down the after-sales guarantee that can be provided on the purchase receipt. Generally guaranteed for at least a week! Secondly, try to buy the most famous brands or popular brands, so that when the mobile phone needs maintenance, the parts are easy to find and maintain, and there is no need to worry about no buyers if you want to change the mobile phone. Don't buy an older "primitive" mobile phone, that is, even the text messages and menus are received in English. This kind of mobile phone is generally because merchants can't upgrade their software to support Chinese short messages. Finally, obviously unknown mobile phones cannot be bought. Some lawless people get goods by stealing and then sell them at a low price. Don't forget that buying stolen goods is illegal. The lightest punishment is confiscation of stolen goods and fines.