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Hi guys I had a mac that kept rebooting and no backlight. Corrosion SMC_Reset_L circuit and backlight circuit. Changed all and backlight works. However, the backlight only turns on if the Mac is about 50% pass booting. If i use Option command the backlight is off, when using Command + R its off...

Hello, we got an 820-3662 with liquid damage that came in dead. Some line at the CPU power IC was burned we replaced and now it works again but with a slow mouse and high fanspin. Apple ASD gives 2 errors. - Sensor Current IM0C DDR test 1 - Ts0P Palmrest So far we have replaced a new trackpad...

Im happy too indeed, this repair made up for another year of forum support :)

unfortunately the customer had too flight out tonight so I couldnt finish it, thanks anyway!

Came in with liquid in display connector and 8.19v no light on charger. Reflowed the SMC chip and replaed the display connector, now I get 8.59 and fan spins, stops, spins again and keeps spinning (not 3 x though). I do have CPU clock. Can this be related to U6100/traces, or is that only an...

We resoldered the joints from J6600 there appeared to be some cracks. Somehow this also fixed the purple colour of HDMI as that worked also after we did this :). Happy customer!

Hi guys, I have an 820-3738 that someone else tried to ?fix? before. No light on charger and no PPBUS. I found D7105 missing and after I put it back I get following measurements: PP3V42_G3H = 3.43v PPBUS_G3H = 12.27 PPVRTC_G3H = 3.3v SMC_RESET_L = 3.3v Still no light on the charger, so I...

This one is fixed! Thanks

Hi guys I have this liquid damaged machine, went in a pond. Ultrasoniced it, replaced some IC and display and all working fine except the audio port. It shows the red light and digital out, no speakers detected. Already tried to clean with alcohol, but it was already in the ultrasonic so that...

I figured out it has to do with the OSX Mojave. Our own laptop also boots with backlight dimmed, can see the logo but no backlight, once its half way boot process it turns on and finishes boot. The issues with backlight after login in are fixed, so this one is closed :). Thanks again!

OK so I put our own dispay back in our own machine, all works fine. One thing we noticed. When we use the clients display in our Mac, it is working, however when we attach a USB device the backlight does not turn on while booting. Backlight fixes are usually my favourite repair, but this one has...

Ok here we go: - Replaced the display connector - Orignal 60W charger - 49v on LCDBKLT - Known good display Never seen this before. Is there anything else beside LCDBKLT thats needed to turn on the backlight? I can only image this board destroyed my good display....... so I will put that back...

I can see apple logo with a flashlight. At the same time I have 49v on the pin of the LCD connector. Using an original 60 watt charger, will try the PRAM and update tomorrow as its getting late here :) thanks!

oh and I had a 2nd one with same issue 2 days ago, also started to work again after UC.

It still hasnt returned:) fingers crossed!

Happy Easter fellows! CLient came with this 820-4924, backlight didnt work, sometimes it turned on and worked for a while and then off again. After checking the board found liquid U8330 and U5510. Cleaned it and replaced the IC, and I thought all be OK, but not! I still have no backlight. I do...

I ultrasoniced it and this one seems to work as well now,.... mmmm . will run tests for a day see how it holds out.

Hey guys I got an A1534 yesterday with attached issue. I ultrasonic the board since I had no clue, it worked fine afterwards.been testing it for 2 days running benchmarks seem ok. Today, I got another one exactly the same issue. This one has a brand new display installed by Apple few days later...

problem solved, i just had a customer coming in with the same issue. His harddrive was fried, some black IC, shorting the 3.3v line i guess. Removed the drive and worked. I took the drive out of this one, works as well :)! So 2 macs fixed :)

Working display is the same, Apple logo turns on but no image after chime. I also tried to boot from external drive, same.