for example: a notebook with power on the system does not respond, after engineers to field testing, found just memory clean reinstall good, would tell customers your notebook motherboard failure, need $ 300 fee, wait 30 minutes to fix.
overstate fault
for example: a notebook motherboard main power supply fuse, after testing, will often tell you, the main power chip failure, costs $ 500.
overstate fault 2
a laptop LCD display as a whole is red, they will tell you, you need to replace the LCD prices 1XXX, after waiting for you to pay money to leave, they replaced LCD, cost dozens of changing a lamp, OK, and can be used as a good LCD spare parts.
overstate fault 3
a laptop power is off, in fact, just CPU loose, such a situation and CPU power supply fault grounds, also can take you as 300-500.
replacement
it was stated that the Board is not not fixed, why are use ... surreptitiously to supersede ... yet? Here said a we encountered had of things, has a customer to water of notebook got Axxx manufacturers maintenance station to, manufacturers maintenance station told he Hp Pavilion Zv5000 Battery, Board water does not belonging to warranty range, does not accept warranty, 2 hours Hou, customer to we company, after detection gateway laptop batteries, found Board has was replaced became beyond recognition, everywhere patch of Board, we analysis Hou think, the customer of Board water traces does not obvious, the maintenance station can with this Board, after technology processing Hou, still to manufacturers replaced a new of Board back, such they on abstract more has a Board.
technology not to failure as a result of the upgrade. A notebook, originally the power socket is loose causing no power, welding or replacement can solve the problem, because the technician technology not to, may in the end, really wants you to replace a Board to solve the problem.
notebook sent repair to a company, if because various causes, such as repair price partial high, customer on this company does not assured,, customer select abandoned maintenance was words, often also has also a risk, that is, may will using high pressure electric shock, or human set fault, replaced Board Shang more difficult detection of chip, method, caused even you to also a company sent repair, also is difficult to repair.
said zxcsky32645 notebook maintenance, now many of people are know BGA maintenance of concept, is does not understand, BGA welding technology in technology excellent of maintenance company is is usual of things, BGA welding of success rate will reached 90% above, and in General of company, may on it's hard to say, success rate can reached 30% words, has contains many of luck components has, so said, for need do BGA of Board, in technology excellent of company, repair success rate General will has 80% above, and in General of company, has half of opportunities you may on need replaced Board, white more took large hundreds of block, even thousands Yuan of wronged money, and often repair notebook is one-time of select opportunities, select has a maintenance company, often on means with you may on lost has again select of opportunities, this is by electronic products of maintenance characteristics decided of.
probably said something businesses used above means, specifically how to prevent these risks, I think users can follow several points, although not completely avoid the bait, but would still lower risk, samller less as possible.
1, usually want to do homework, master notebook using knowledge, notebook or do you want to handle with care, try not too close to the Cup it to avoid violent fall, touch. More than
2, 14-inch notebook, avoid single hand-portable mobile, often carry and avoid travel, and may increase the probability of BGA chip failure, therefore, if you often need to carry a portable travel Peng yo, best buy under 12 inch size notebook, the failure rate will be much smaller.
3, failed when, as far as possible before troubleshooting the software, and can rise to the optical drive removal, friends and colleagues to replace the power adapter, means of life, and so on Dell Inspiron 1520 Adapter, are self test, to determine whether or not real is a hardware failure, including detecting memory is loose on their own, whether the memory more dirty Dell Inspiron 1720 battery, needs cleaning and so on.
4, needs time to repair, select Word of mouth, equipment, technical quality is quite good professional chip-level maintenance company, so technically guaranteed.
5, when repaired, requiring registration serial number of the notebook, and memory, optical drives, hard disk serial number, you can take photos with conditions to prevent bad businesses use ... surreptitiously to supersede ... accessories.
6, their own ability, nor blind hands, after all, than professional repair company, in the tools, experience and equipment conditions, there is still a large gap to avoid expanding fault. an article on: computer practice next: Notebook software test summary
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