The 'boil' thing of a computer repairman

Duo series CPUs can become Celeron in a flash, rare types of chips on the motherboard, RAM, CD drive, DVD . are likely to be swapped. If there is nothing to change, many workers still break the machine to make money from customers.

Bui Phuoc Thai, District 3, Ho Chi Minh City, who used to work as a technical staff at a computer repair shop, said that one of the most common ways to trick customers' vigilance is to have a whole-hearted attitude. instructor's level. When receiving machines and returning them, they always direct customers to focus on tasks such as stamps and labels, and let them be assured they are ready to sign their names on those stamps.

" All this only makes customers feel secure and of course reckless. When the machine is checked, the components are boiled, only the outer shell and the signature are sometimes fake ", Mr. Thai to speak.

According to Mr. Tran Van Hau, computer repairman in District 7, Ho Chi Minh City, the warranty stamps affixed on computer components are often easily torn if there is a strong impact. And labels always have a certain thickness so if you remove them to paste them there will be many wrinkles. However, when some workers use the dryer to peel off these stamps, it is difficult to identify.

RAM (memory) is the easiest type of device because of its simple structure. Many guests asked to sign the chip for sure, but this was meaningless by the shipper who had the ingredients. " The memory brand has a lot but most of them have popular and easy to replace chips, " Mr. Hau said.

LCDs are often replaced with image signal lines (VGA) or more powerful, and the screen mirror part will be replaced. If this is the case, the owner will have to spend about 15 to 35 USD for the cable and replace the screen from 70 to 200 USD.

The long VGA cable is on the back of the LCD, always fixed with tape. So when peeling off, it is easy to leave a trace. In the meantime, if you repair your laptop and report parts that are not related to the screen, these signs are sure you "have suffered".

Some similar components that rely solely on stickers or labels will be easily tricked: laptop batteries, wireless cards, Bluetooth or infrared communication cards, CPU, CD drive, DVD player .

Hard disk drive (HDD) is also one of the fastest interchangeable things. Most types of HDD on the market have a thick layer of labels and are easy to peel off. Therefore, workers only need to change the label to match the original drive capacity of the guest.

According to Mr. Hau, the HDD lists are most easily removed from easy to difficult ones: Seagate, Maxtor, Samsung, Fujitsu . Hitachi firms, this ability is excluded very much due to the new models with tin coating. so when peeled off, it is impossible to paste.

Besides the tricks to be able to steal things, many craftsmen are even more malignant when destroying some components to force customers to fix the device. Some places use razors to slash the "north bridge" or "south bridge" leg. These are the two most important chips on the main board. Because it uses chip-paste technology that is not in the conventional welding method, it is difficult to replace when damaged.

This error is extremely difficult to detect even for a professional technician. Many workers also use the way to change the order of ICs, reversing . making guests have to bring many other workers can not know how to fix. The mastery only had water return to its original place and bear an exorbitant price to return it to normal.

" A few stores also take advantage of this technique to polish their names. Customers who do not know think that their skills in these places are higher, so they can correct the damage of their machines ", he Nguyen Van Tin, a longtime IT technician in Thu Duc District, Ho Chi Minh City, said.

Another worker also revealed that many current promotions are very dangerous, such as checking laptops, PCs do not cost 1 cent, troubleshooting or free PC health checks . This is also a convenient opportunity to "witchcraft" workers let the machine heal to become sick, " money does not lose but disability also carries ".

Many experts recommend that, in addition to identifying signs of being tricked, the best customer should take precautions. If you have a broken desktop or laptop computer, ask your loved one to check it out. After being told something wrong by the inspector, it is best to leave the parts store alone, and all should bring it back.

Since all types of devices from small to large have serial numbers, you should patiently stamp or record the serial number of all the components in the device in front of the machine inspector.

Below are pictures of some cases of exchanging components. The red symbol is the device that has been exchanged, deliberately reversing the order . The blue symbol is not yet "boiled":

Main board of chip removed, reversed.

Label over other RAM should be folded.

The stamp of the wireless card leaves a stain due to touching it directly.

The VGA laptop cable has swapped its legs against the original cable.

Laptop battery is swap and original battery.

The CPU was stripped of the stamp compared to the original.