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screen was replaced at another shop, i haven't gotten the computer yet. but apparently after the repair the touch-bar stopped working, as i haven't had any experience with touch-bars yet i was looking for some guidance, what should i look for, what could cause it. im assuming something got...

original board had no lcd enable, replaced with new board, and it wont boot to the os. it shows the folder icon, 'so the lcd was good like i originally thought" the problem is even with a working os it wont boot to it, it will boot to a usb os, but takes 10-15 min to get in, even to boot to the...

i cant get lcd enable to be sent, i can force backlight, i reflowed u8900, but was missing some rails, so i replaced it and the rails showed up, i now have pgood, but no matter what ive tried i cant get lcd enable to come on. im almost 100% sure this lcd is fine.

i have a 820-3332 that came in for no power, after diag realized its powering on fully just no internal display, checked smc_lid and realized it was 0, repaired and got screen for about 30 seconds, then black. figured out after a few seconds i lost PP5VR3V3_SW_LCD_ISNS, so i jumped it from pin 2...

water damaged macbook, without a battery, works 100%, attach battery, battery % shows up and seams to be charging. randomly will shut down. if i measure the power pins on the battery while plugged in, the voltage jumps all over, leading me to believe there is a short but nothing seams to be...

i get a amber light for power, board was water damaged, around smc, r5177 -5180 all burned /missing, replaced with good resistors , trace gone at r7516, r8141 was gone. i get 16.4v ppdcin_g3h i get 0v on pp5v_s4rs3. i noticed on alot of the enable lines im getting half a volt.

first i want to make sure. does this need an 85w charger or can this work with a 60w, does the fan spin on startup or is it one that has to get hot first? i do have green light with battery and amber with no battery.

computer came in claiming waterdamage and wont turn on. i unpluged the keyboard and it powered, but no trackpad in windows and was not able to use usb mouse. unpluged trackpad, usb mouse worked. pluged back in keyboard, only power button, no keys, still usb mouse. pluged back in trackpad and it...

if you try to turn it on normally the fan just spins for one second. if you hold the power button for about 5-6 seconds it turns on and runs normally. everything functions and i did an apple diag test and it passes. if you restart the machine it restarts normally. but if you shut down it wont...

i checked every fuse i could see. but i have no backlight, from the diag i did on it, it looks like i dont have the keyboard or lcd backlight. so im looking for f7700 any idea where that is on this board? or where to look. the customer said he spilled some water on this but i see no signs of...

was slightly waterdamaged, replaced parts r3880, r3881, c3880, r5079, c4905, r5413 as all of them were looking pretty bad with only one side being still attached. went from no fan spin to quarter spin. nothing else looks damaged. what causes a quarter fan spin?

i have a mac that tries to turn on, that just sits and spins the "right" fan, the "left fan never kicks on, with that being said. how do you test this board? since it wont power up without the battery plugged in, and you have to screw in the battery how do you test voltages on the side of the...

what should i check first? i know the machine is powered on, and i have back-light, just a white screen. the screen will dim if i remove the power cable telling me it is booted up into the os. i have no history with this board so im not sure what happened to it. if i wanted to see if the gpu is...

the machine powers on, but wont boot up, l4500 was blown off, and replaced and is getting 5v but still no harddrive. how do you go about a diag for this kind of problem?

this board works with a third party charger, found that out when fixing it, but does not turn on with a genuine apple charger, green light comes on for a split second then goes off. my guess is that the U7000 is not recognizing the charger, but im at a loss on how to check what has went out ...

i have a MacBook Pro "Core i5" 2.5 13" Retina 2012 that lags everywhere, in the apple diag it passes everything, and yes i chose the full diag, 3 times. i see no reason for the major lag. tried new harddrive with a fresh el capitian and nothing changed. i come in today to work on it and now it...

i have a MacBook Pro "Core i7" 2.4 17" Late 2011. the mac lags everywhere, in apple diagnostic, recovery, new drive, new drive plugged in via usb. nothing seams to stop the lag. i remember when i was training with louis he mentioned this issue could be caused by the board but i do not remember...

i have a 820-3462-a board checked voltages and i dont get a green light, yet i get 3.4v on adapter sense. i checked around all fuses to see if power was good and have not found a line with no power. any idea? think it may have sent a spike to the cpu?