Dead Macbook Air from a massive tea spill, too bad to revive, but data was a must to recover from a destroyed Flash Solid State Drive. We took the parts needed from a similar Samsung flash drive to replace the wrecked areas, popped it into the ultrasonic, and voila – 251GB Mackintosh HDD with all data restored and copied to another drive. 👌 #data #recovery #SSD #professional #open #righttorepair #apple #mac #macbook #dead #liquid #water #damage #repair #nearme #horsham #sussex #upgrade #vintage #service #local #fast #logicboard #fix #screen #replacement #lost #password #EFI #lock https://www.mycomputerworks.co.uk/ https://macrehab.co.uk/
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!
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.
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/
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.uk – macrehab.co.uk
Liquid damage repair - 2016 Macbook Pro 13" A1706 mug of tea knocked over it
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?
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.
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.
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.
You’ve seen and heard Apple talking about the iMac with 5K Retina display, the MacBook Pro with Retina display, and so on. But what is a Retina display, and why should you care?
Retina displays are high-resolution screens on which graphics are extra sharp and text is super crisp.
The LCD screens used in Apple’s displays use a grid of “pixels”—the smallest possible dot whose color can be controlled—to create all the text and graphics you see. Today’s iPhone 7 Plus screen can fit 401 pixels into each inch. As pixel density goes up, the pixels get smaller. With a 72 ppi (pixels per inch) screen, it’s easy to see each individual pixel in a character, but the higher the pixel density, the harder it becomes to pick out separate pixels.
When Steve Jobs unveiled the iPhone 4 in 2010, he said that for a screen that’s held 10 to 12 inches from the eye—about the distance at which many people hold their iPhones— the human eye can’t resolve individual pixels if it’s about 300 ppi. At longer distances, it becomes harder to discern small details, so most people won’t be able to pick out pixels on a screen viewed at arm’s length, such as an iMac display, if it’s about 220 ppi.
So Apple says a “Retina display” is any screen whose pixel density is high enough that someone with 20/20 vision cannot see individual pixels at the standard viewing distance used for that device.
For the Mac this is about 220 ppi. Larger iPads have a pixel density of 264 ppi, and the iPad mini checks in at 326 ppi. From the iPhone 4 through the iPhone 7, pixel density stayed at 326 ppi, but the iPhone 6s Plus and iPhone 7 Plus are 401 ppi. The tiny Apple Watch screen is about 330 ppi.
If you suffer from eyestrain, reading on a Retina display will likely be easier and less tiring, since the words will be clear and crisp, without any of the fuzziness on the edges that you see on lesser displays.
Last, the words “Retina display” are an Apple trademark. So you won’t see any other manufacturers claiming that their products have Retina displays.