2010 15″ A1289 Macbook Pro booting to a black / dead screen

Ahh, it’s graphics (GPU) failure! reflow the graphics chip and all will be well they say…. No. No no no NO! This is not the issue, though reflowing the GPU will sometimes TEMPORARILY fix the issue. Why ? It’s not the GPU at fault here, and never has been on these otherwise great machines. It’s the fault of a bad capacitor in the circuitry leading to the GPU. Reflowing the GPU will also heat this capacitor which will temporarily get it working again. As this capacitor (C9560) fails the mac will experience Kernel panics and eventualy a short to ground and thus no screen image!

Mac help fix repair horsham

To replace the capacitor with a new one the same is pointless as thtat will blow in time too. Why ? Its values are too low for the power required and it’s made of the wrong materials for the tolerance required. So we replace it with a 330uf capacitor, which in itself is a larger chip. We have to scrape away at the pad enlarging the pad in order to solder it on to work correctly.

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New larger capacitor in place

And what do we have ? A lovley working 2010 15 Macbook Pro that wil never have this failure again. It may be 10 years old, but still a very wothy and capable machine. Vintage, it’s not! 👍👌#professional #open #righttorepair #apple #mac #macbook #dead #liquid #water #damage #repair #nearme #horsham #sussex #upgrade #vintage #service #local #fast #logicboard #fix #screen #replacement #local https://www.mycomputerworks.co.uk/ https://macrehab.co.uk/

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Tea killed my Macbook.

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Repair of a liquid damage Macbook Pro

Another dead Macbook pro, deader than dead McDead from dead farm having had a mug of tea through it. Though being a 2012 15″ i7 16GB machine with the dual graphics, its still a highly desirable and worthy machine, rare as hens teeth to buy, naturally customer wanted it fixed. Identified 2 shorts to ground, rerouted those and replaced 2 resistors- still no power. Nothing, no heat from anything. A bit more investigating and it seems the Platform Controller Hub (PCH) microchip is knackerd, swapped that out and we have power. Yay! But no screen. Bums. All the video related power rails checked and present, which lead me to LP8550, which is the backlight driver chip for the screen. No backlight, no picture. Just examining this little micro chip visualy was enough. If it looks like crap, it is crap. tested with multimeter nothing coming from pin 14 – which is …. backlight power to screen. chip removed and flipped over, can clearly see where a bit of tea got under it and shorted it out ( the greenish and grey bits ). New LP8550 , flipped to show what it should look like. Chip put back onto the board, board back into the Mac and boom. Working 100% as it was the day it was new, and at a fraction of the cost from Apple 🥳 #open #righttorepair #apple #mac #macbook #liquid #water #damage #repair #nearme #horsham #sussex #upgrade #service #local #fast #logicboard #tea mycomputerworks.co.ukmacrehab.co.uk

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Elementor #2916

Liquid damage repair - 2016 Macbook Pro 13" A1706 mug of tea knocked over it

macbook repair

2016 Macbook Pro 13″ A1706 mug of tea knocked over next to it spilling across the keyboard resulting in sudden death. Testing revealed No power, no charge, no green light, no screen. no keyboard. Nothing. After putting the logic board through the cleaner to remove corrosion and debris, still nothing. Suspect U7100 which is responsible for pretty much everything including main power rail G3Hot and charge sense, along with a whole bunch of other things that you’re not really interested in, are you?

U7100 removed.....

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U7100 replaced...

Having replaced U7100 and a few burned caps, we have power, we have post, we have a booting machine . Still no charge, closer inspection the battery and one new battery later and we have charge sense. As seen in the photo’s First the Mac accepts 5v charge, if it’s happy and all is present it allows 9v , and again, if all is well and all is present, it boost’s to the full 20v to bring system power.

And we have no screen. I suspect that will be U8400 , the chip responsible for the LED backlight getting a boost from 12v to 50v. Now you don’t see it. Now you do ! U8400 replaced and we have a picture again, reseating and cleaning of keyboard connector and its back. Another restored to 100% working order at a fraction of what Apple charge to replace, and never repair.

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Liquid damage Apple Macbook and logic board repairs Horsham

Mac liquid repair horsham

Has your Macbook  suffered liquid or water damage ?
Has your macbook got a failed or problematic logicboard?
Has Apple tried to tell you it’s your fault when you know it wasn’t ?
We will fix your macbook at a fraction of the price of Apple.
With our state of the art workshop we have all the tools ( and more ! ) to fix the actual problem(s) with your Mac for £195 to £400 – Rather than replace the entire logic board at a cost of £800 – £1200 by Apple.
All work is done onsite. https://mycomputerworks.co.uk and https://mac-rehab.com 01403 586016

What did they do to you? What did they do to this poor little macbook ? This Macbook came into us in quite a sad state, stone dead. first thing to do is open it up and remove the logic board to inspect for damage. It didn’t take long with this mac.

Eeuuww !
Yukk! The horrors!

With the logic board inspected, and as much dirt and corrosion cleaned off as is possible, time to remove further corrosion , and any liquid left behind under chips etc with the amazing Powersonic P1200D Ultrasonic cleaner.

Now that the Macbook’s logic board has been dried correctly, it looks brand new again !

looking at the schematics for this particular Macbook Pro, looking at where the problem areas are likley to be.

Removing all this crap….
and making it good again.
A booting working Macbook Pro fixed !

Get in touch with us at https://mycomputerworks.co.uk or https://mac-rehab.com and send yours in. Servicing the UK and Europe. 2-5 day turnaround in most cases sometimes sooner!

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Macbook Complete ! All work is done in Horsham, nothing is sent away. – After all, what would Jesus have done ? 😉
Do NOT follow this link or you will be banned from the site!