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Does anyone have a board view and schematic for this MacBook Air please. I tried with 820-01521 but this part with is liquid damaged is completely different. Thanks for help

have checked with hdd when powering on light blinks and than constant light no blinking, I've tried boot it up with "alt" as it will go to boot menu

I've checked there is activity on USB mouse lighting up and stays on

Hi everyone, I've got MacBook Pro after other repair centre tried replace flickering screen since than laptop is not powering on, caps lock is not blinking touch bar not lighting up. There is activity on all ports voltage jump to 20V and 2.3 A is taking by board when battery is connected I...

Hi, I got recently this MacBook with no charging issue. I've use 820-00239 schematic diagram to check out the board. Laptop was liquid damaged around L3500, U3100. I replaced all liquid damaged components and reball U3100 because laptop didn't take charge on one c-type port voltage didn't go...

Maybe this is the answer for question but I don't think its actually true myself, found this on apple forum Hi Everyone Well, I have just called AppleCare. Very friendly and helpful. The answer is – because my laptop was originally a build to order, the model/year does not show up in...

Serial and specs appear, only what's missing on "About the Mac" is the manufacture date

Yes its original backup file from board, SN of board its not matching bottom cover because bottom cover is from another MacBook Air from 2012. If it will go for sale first what people looking at is what year and spec the laptop is in "Abut This Mac" so I was thinking to sort it out

I've tried this bios, still not showing a year and laptop is a bit slower than it was when loading to system or opening apps, PRAM and SMC reset has been done, didn't install fresh OSX trying this on this installed this morning. Laptop is connected to network and I wait a few min because...

I've tried do it myself but I don't know how do fix Fsys checksum, I tried new bios and swap ME region and change SN. Just tried this and still same no manufacture year, SN presented correctly I install fresh OSX because I didn't recognise SSD properly so everything is as it was. I don't have...

or any chance you could fix this Fsys for me please here is this bios, I start reading now about it and looks like I will have to figur it out but I need this laptop have ready for tomorrow morning tested please if you could help me. Much appreciated...

could you share clean ME bios please I will try do this the old links are not working

Hi, I've got another MacBook Air 13 SMC was faulty and I replaced it now laptop works but it doesn't show manufacture date. I know that if someone has been messing with bios and SN this will heaped I didn't touch it but it look like someone try fix something so its possible bios has been...

Found one on forum https://drive.google.com/open?id=1qG0XdP8XVhJLqnXve0fc6ZTgSH2WgJ87

I've tried new bios, duble check all termination resistors and reflow PCH/CPU no results any more ideas? Thanks

thanks for response I will check everything what you said and post results

I got a MacBook Air 13 2015, it was a liquid damaged not powering on, there was no charger light indication. i spotted corroded J6100 connector and remove it also corrosion on U7090 it has been repaired, lcd connector was corroded I also replace it. MacBook powers on works fine boot to system...

here is original bios https://drive.google.com/file/d/1uemlxzTNNMg6IOKNjFDThymGgQC1bK4W/view?usp=sharing

no I clean it with intel easy clean ME

just tried run windows from stick and its loading fine and works but osx installation usb stick want load and osx itself is crashing what do you think ? I've replaced EFI IC just in case and load in old bios with clean ME region still same Here is a video when trying to boot to osx and crashing...