How to tell whether Nokia 1520 is new or old?

Refurbishing a mobile phone is actually collecting the original movement, shell or outer packaging for maintenance or processing, and then selling it as a new machine. There are many kinds, mainly including:

1. Old machines with circuit board problems are repackaged for sale after maintenance or parts assembly, and their performance is the most unstable;

2. The shell of the normal old machine is sold as a new one after being treated or replaced;

3. Irregular channel vendors' machines are sold as new products after being refreshed and repackaged by software, which lacks the stability of general software for such machines. These refurbished machines have a common feature, that is, they can't enjoy after-sales service like regular licensed products.

★ The following is how to identify the experience of refurbished mobile phones. Let's have a look. ★ Look at the serial number (IMEI)

The serial number of a mobile phone is just like the ID card of a mobile phone, and each mobile phone has a unique IMEI number. Generally speaking, it can be used to judge whether a mobile phone is genuine or not.

The discrimination method is as follows: enter * # 06 # in the standby state of the mobile phone, and a string of numbers displayed by the mobile phone is the serial number of its motherboard, so write it down;

Remove the battery of the machine and look at the serial number of the chassis on the white label in the two labels on the back of the fuselage. Another label is usually a network access license.

Whether it is consistent with the previous figures; Look at the IMEI number on the box of the machine and compare the three to see if they are all consistent.

If the serial number of the motherboard is different from the serial number of the chassis, then the machine is probably repaired or assembled, so don't buy it. If all three serial numbers are the same, plus the network access license, it can basically prove that this machine is genuine, but it can't be 100% sure, because JS can fake anything now.

The serial number of the motherboard can be written by computer and software, and a few dollars can buy fake serial number labels and network access licenses. For the sake of caution, we should continue to verify according to the following methods. ★ Look at the outer packaging and instructions of the machine.

The packaging and instructions of the regular new machine are beautifully printed, mostly coated paper, and the fonts and images are very clear and layered, while the counterfeit packaging boxes are mostly copied on simple one-sided paper.

The fonts and images are rough, the printing handwriting is vague, and many instructions modified through informal channels are even plagiarized. There are also some refurbished machines that use original genuine packaging boxes and instructions.

But after all, the machine is old, its packaging box must be worn, and there must be traces of use in the manual. Pay more attention when you buy, and you will find it. ★ Look at the network access license

There is really a watermark on the network access license, and the surface color is uneven, deep and shallow, thick and thin; Most of the fakes are imitations, and the surface color has not changed.

If you can't see it, you can also use the money detector to look at the network access license. There really is a red "CMII" security pattern in it. False and vague. Real network access licenses are generally printed by pin printers, and the numbers are very clear. Look carefully at the dent made by the needle, but the fake network access license is printed by an ordinary printer, and the figures are not very clear.

No dents. Generally speaking, it is difficult to fake the network access license, after all, the equipment cost required for fraud is relatively high. In addition, you can also check the authenticity of the network access license through online inquiry.

I won't elaborate here. ★ When you look at the mobile phone case and open the new machine, you will obviously notice that the "key parts" of the machine are covered with film for key protection, such as the inner screen, the outer screen and the camera. As long as these parts are in contact,

You'll leave fingerprints. When you see the fingerprints on the new machine, don't listen to JS's explanation. In addition, dust and traces of use are inevitable for refurbished machines.

The gap between the upper and lower shells of the machine, the gap around the keyboard, and the charger slot are all places that are easy to "hide dirt and shelter evil people", and the rotating shaft of the clamshell machine will also leave traces of use, so special attention should be paid.

★ Generally, the shells used in refurbished machines are original or carefully processed old shells, so the front and rear parts of the machine's shell are prone to loose closure and large gaps.

The identification method is to try to insert your fingernail into the seam between the upper and lower covers of your mobile phone. If it can be inserted, it is an assembly shell. For machine that do not change that casing,

Before JS was sold, it was sprayed with a layer of mist like a detergent, and the surface of the old shell immediately appeared the same matte effect as the new one. If you are not careful, JS will get away with it.

But it won't be long before the paint on the shell falls off. When buying, you must carefully observe the shell, because JS technology is no matter how good it is, and it is not as advanced as the original equipment.

If you look closely, you can see a little small particles, which are dust and caused by not working in a vacuum room when painting.

★ If it is a clamshell machine, you can also check the joint of the clamshell machine, because sometimes, even if JS handles the surface of the machine well, these places will inevitably leave some traces of dust.

In addition, check whether the screws of the fuselage are brand new and whether there are any traces of screwdriver screwing. More importantly, many new mobile phones have obvious sandalwood smell, while old mobile phones and shell changers generally do not have this smell, or the smell left during processing.

★ Look at mobile phone accessories. The new machine of the regular manufacturer has a full set of original accessories, at least one charge and one charge. The accessories of refurbished mobile phones are generally incomplete or not original.

Before purchasing the machine, it is best to go to the relevant website to find out what the original accessories are standard, so as to avoid JS buckle accessories.

In addition, if scratches are found on the plug of the matching charger and earphone, then this mobile phone is probably not brand new. ★ Look at the usage record.

Look at the records of games, short messages, phone books, call records, homemade ringtones and other items in the mobile phone.

If so, the transformation is highly suspected. In addition, during normal use, the machine often shuts down or crashes automatically.

Then you can

Ask the warranty period of the dealer's machine and ask for a regular ticket. Refurbished mobile phones cannot enjoy all the rights and interests stipulated in the "three guarantees" of regular mobile phones.

Therefore, there is generally no warranty period or a shorter warranty period. If the seller says they are responsible for the warranty, they can't agree, because regular mobile phones are generally guaranteed nationwide.

If the seller can't do this, then there must be something wrong with the mobile phone. ★ Look at the price

As the saying goes, greed is cheap, and big losses. Before buying a mobile phone, it is best to find out the price of the mobile phone in the local newspaper or website. If the price of JS newspaper is "very cheap",

Be wary that such "cheap" mobile phones are not refurbished mobile phones, not informal channel products, or accessories are "short of weight". It is recommended to buy a mobile phone in a regular store with good reputation and good service.

There is a complete invoice and a three-pack card. In this way, the legitimate rights and interests can be guaranteed when the machine has problems. Smell Most new machines will have a special smell when electronic products leave the factory, which is by no means imitated by ordinary perfume. A similar fragrance can be smelled on the newly manufactured computer accessories. Refurbished ones generally don't have this taste. Even if JS is fragrant, it is by no means the smell of a new machine.