Check to see if there were no distortions or even longer, you would then see technical signs also apparently does not. Mac's usb port all white not black or green as win........... So bring the whole usb test to see the machine has got good usb?7. check the charger. This step depends on many sensory. the brothers further reference. best hands Charger zin and new dc.THEN PLUG THE ARTIFICIAL LOADS. START YOUR COMPUTER AND LOOK AT THE PERCENTAGE OF THE BATTERY.B. SOFTWARE.1. Now open up the machine, on the apple symbol on the top left corner of the screen--> select about this mac--> system profiler-Full charge capacity (mAh): this is the remaining capacity when fully 100% battery life, see that metric and compare with the original macbook's battery level, often have few levels for for macbook but as you remember, the 6500 range vs 5770, erroneous to expect you children to edit, I think just on 6000 and 5000 battery is delicious on it.-Cycle count: this is the number of times the battery charger, the battery charger is usually macbook 1000 times is frivolous, and this number is calculated according to the cycle, 1 is 100%,e.g.: morning you spend by 20%, and then fully, spend the afternoon more 80% and then charging again. So you gave out 1 cycle.-Check the drive in SATA/SATA Express items:Note the rotation speed corresponding to the life of the macbook as 2012, the 5400 etc.vs the style see apple do not. Most of the apple production if it will have the word APPLE HDD and then nothing.-After you have certainty about the battery and drive, now keep open many programs up, running a lot to see the air is stable or not.-All the information on the machine you need to know just the icon Apple-> System icon or Prference Apple-> About This Mac-You must also see the Ram of the machine always, generally don't miss anything that needs exploring.-And finally. * Open the Apple page up, to Support and choose this, and enter the serial number into the to view longer warranties or not(Login or register to see the link) 2. turn up all keys typed text see ok No. This is important, the keyboard is where used often if there still will be very uncomfortable3. Use the usb connection ports test. SD port Lan port. .. ...4. check the speakers. timid, cloudy or not. Also good 2 speakers.5. Check the wifi. ... the Bluetooth wireless connection. This step is very important.6. Buy your warranty: attention is a CARGO or LL .... change when each area that supports Apple's getting undocumented new purchase is warranted. Should check the warranty conditions in the place where I live and best airline to decide whether to buy a longer warranty but no papers with more expensive price for what some bulbs do not.7. LOOK BACK at a GOOD BATTERY AGAIN NHẾ SEE UP the BATTERY. UP IS OK.Note: security is still the most when you go along or mechanic vs those who know well about hardware to help you test machine, but if you don't like her who:D, then this article is it what many also help you reduce your risk when buying your remnants.The AK narrowly lost, in the about this mac to remember compare the information on the vs on the CAP your ass see duplicate or not to sure the macbook you purchased truly raw zin.This is the experience as well as his collection, if people expect the erroneous suggestions help yourself the wrong milk ^^
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