I was lucky enough to find D900 that fell off.
It says "A4" on the component.

Wit that info, i found chip on aliexpress.
BAV70 A4 0.2A 70V SOT-23

for L400 with help of chatgpt, i ordered
0805 90ohm common mode chokes filters

Hopefully everything works...

Did some further analysis.

CC401 - 0603 100NF 50V X7R (not sure but guessing since its USB related)
IC400 - SOT23 USBLC6 UL26 (pretty sure)
L400 - 0805 2 line common mode choke filter (not sure what ohm should I get)
CR104 - 0805 100k
CR902 - 0805 1.5k
D900 - I HAVE NO CLUE WHAT IT IS

Someone please correct me.

Thank you!

Sorry for digging old post but im also trying to repair same PCB that is missing component which got missing.
I couldnt find any replacement PCB, so my only option is to repair.
Luckly, I found one image (only one) that shows bit of components so that will help me to determine what components im missing.

1. What is the chip above UL26 (IC400) (marked L400) with 4 lags.
2. CC401 seems to be capacitor but which size capacitor should I use? Can i just extract similar 0805 capacitor and use it?
3. CR104 seems to be 104 resistor 0805...

Re: Macbook Air A2179 worked before but dead now

Minor update

I got USB-C power meter and I confirmed that the board jumps to 20V

Re: Screen Replacement for A2337

Thank you so much for the reply
I will not cheap out on the parts and will get genuine parts from ebay.

Hi,

I have a 2020 macbook air m1 that needs a screen replacement (cracked)

Right now, I have few options but not sure what to take

1. Screen only from aliexpress (80 USD)
2. Housing and screen from aliexpress (144 USD)
3. Genuine used screen from ebay (250 USD ish)
4. New screen from ifixit (450 USD)

To be honest, I dont think new screen from ifixit is worth it since I can get it replaced by apple with same amount of price (haha)

Now, I am wondering is it really worth to spend 100 more on used genuine screen....

Re: Macbook Air A2179 worked before but dead now

https://boards.rossmanngroup.com/thr...ecovery.63410/

I found similar problem of 0x3FFF

1. SSD problem
2. Naked board (I may still have problem with trackpad/keyboard which is causing the problem)

I dont have any spare macbook or parts to test 2nd option.
Is there any ways to test bad SSD with bare board?


Thanks

Re: Macbook Air A2179 worked before but dead now

SERIAL: FVFCXXXXXXXX
Unlocked: False
Labor Covered: False
Limited Warranty: False
Onsite Coverage: False
Part Covered: False
Personalized: False
Purchase Date: 2020-07-29T00:00:00Z
Warranty Status Code: OO
Warranty Status Description: Out of warranty (no coverage)
Config Code: MNHP
Config Description: MBA 13.3 SG/1.1GHZ DC/8GB/256GB-USA
Cto Configuration: 8GB 3733 MHZ LPDDR4X MEMORY, 256GB SSD STORAGE, MAC OS,J230, PKG,BTR,THIN A,J230 (US/CH), NO PRO APPS BUNDLE...

Re: Macbook Air A2179 worked before but dead now

Also, I tried checkra1n to see if I get anything. (between, i dont think its icloud locked)
It detects DFU mode and also sends payload

== Checkm8 Trying to run payload... ==
If everything went correctly, you should now have code execution.
DFU device disconnected

After this, my macbook does not go back to download mode for further execution


1. Faulty logic board somewhere
2. Faulty T2 chip/flashrom
3. Dead SSD

What could it be...?

Re: Macbook Air A2179 worked before but dead now

Also between step 4 and 5 (macos update and Apple configurator)
I also tried online recovery (command + r or ctrl + command + r. not sure which one worked)
I received -2100F error

Hi,I purchased a broken macbook air which claims to be not working keyboard/trackpad.

I was hoping to be able to fix it by replacing keyboard/trackpad but it got worse.

1. Macbook came with Catalina
2. Keyboard Backlight was working
3. I tried to update to latest OS through software update and it was having error with updating (download was successful and it went reboot).
4. Error was stuck on boot loop of where It tries update but complaining boot disk blabla
5. So I connected to Apple Configurator 2 to see if I can revive.
6....

Re: New Members - please post your introductions here

Joining the club hoping to fix my macbook.
Already utilizing search and tons of information already posted.