Display comes like this as shown in pic......tested with another working screen but same any ideas from where to start....motherboard is clean no waterdamage
Attached Files
-
-
Re: Macbook air 13inch a1466 emc2632
Check cpu voltage. if 0v then your cpu can have a short -
Re: Macbook air 13inch a1466 emc2632
Do you hear macbook jingle? Even without a screen, you should hear a boot sound.Comment
-
Re: Macbook air 13inch a1466 emc2632
no sound nothingComment
-
Re: Macbook air 13inch a1466 emc2632
faulty RAM?
If you had hardware error with OK ram, you should hear beeping codes.
No chime, no beep. I think simple RAM reflow could fix that. But don't jump into my conclusion.Comment
-
Re: Macbook air 13inch a1466 emc2632
i did try that by reflow ram chips but no luckComment
-
Re: Macbook air 13inch a1466 emc2632
PRAM reset done? Display OK on external (with internal disconnected)?OpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
-
Re: Macbook air 13inch a1466 emc2632
yes but still sameComment
-
Re: Macbook air 13inch a1466 emc2632
USB mouse light up?
CPUVCORE voltage?Comment
-
Re: Macbook air 13inch a1466 emc2632
yes if connect external ssd with usb it lights up but no communication ...i mean usually when mobo reads it the light blinks but in this cause no blinkComment
-
Re: Macbook air 13inch a1466 emc2632
vcore is good and cpu also gets hotComment
-
Re: Macbook air 13inch a1466 emc2632
Interesting never seen this before. You have no chime so I would check around U1950 and check around the bios. Measure pins of bios in diode mode. Spi rom resistors traces and bad bios are usually the cases for me in with these weird problemsComment
-
Re: Macbook air 13inch a1466 emc2632
tried with a working bios file but still same conditionComment
-
I received a 2013 Macbook Air A1466 820-3437-B motherboard with serial number C02L6GQ9FSV8 that came in WITHOUT a bios chip. I got a new bios chip and reprogrammed it. Macbook now powers on but doesn't boot the SSD. I've flashed a ton of bios but still same problem. Windows installation works with this Macbook but never a mac installation. Unfortunately, since I didn't receive this macbook with a bios chip, I don't have the original bios. What can I do now?... -
Hello all,
Working on my wife's 13' Macbook air. It's been in a box since she upgraded but I figured it could be good practice.
Details:
Macbook 13' A1466
Board (820-3209-A)
Battery OEM 7.3v 50Wh 6700 mAh (020-7379-A)
Pictures below of Boardview and schematic...
I don't know how to test the voltage on a MacBook battery. I just assumed it had an enable pin but the best I could read was 300 something mV poking around the battery connector.
It's an older model and it is very likely that battery has become... -
Hi all,
i got a A1466 with serious water damage. I was able to clean the whole board and only found a fuse with a coroded trace. Cleaning and resoldering did the job and the macbook started normal but after some time the screen began "flashing" like turning on and off while the Macbook was still running. I checked the board again but was not able to find the problem until now.
Any ideas where to look?... -
Could someone help me?
I have a Macbook Air A1466 EMC 3178 - 2017, board 820-00165 and sometimes the boot interrupts with an image of a folder and a question mark.
Could it be the BIOS? -
Could someone help me?
I have a Macbook Air A1466 EMC 3178 - 2017, board 820-00165 and sometimes the boot interrupts with an image of a folder and a question mark.
Could it be the BIOS?07-08-2025, 04:12 PM
Comment