Hi all, working on a MacBook Air A2179 EMC 3302 stuck on Apple Logo. Came in dead. There was spillage on both of the USB-C Charge port connector. I replaced the cap 4.7UF 25V near the speaker connector as it was corroded. Replaced USB-C connector with a new one & now I get display. The problem is that gets stuck on the Apple logo & sometimes it even boots up into OS after a very long time & the CPU fan spins fast. Kindly any repair tips will be appreciated. Do these logic board have BIOS, so that I could do a clean up or load a new dump. Thanks in advance.
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Re: MacBook Air A2179 stuck on Apple Logo
Just to update all... These models DO NOT work well if a known good battery is not installed. In my case the battery was dead & all eratic behaviours. Sometimes it was booting up & sometimes just stuck at the Apple Logo, fan spin was in full blast. As soon as I replaced with a Good New Battery, all worked fine, no errors.
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Hi guys i have my personal MacBook Pro 2015 820-00165 board that was working fine for more than a year and one day stopped working on my original Magsafe charger. It was turning on with my bench power supply. Opened it up and while diagnosing that somehow i ended up with a shorted smc.The line which was shorted was SMC_PM_G2_EN. I removed the SMC and short was gone. So all I had was another working donor board 820-3435 which i used to program it's SMC to 820-00165 using the SMCTOOL By MuertoGB.Took that SMC and use it on my 820-00165 board .And my board started working again. PPBUS_G3H 8.56V.... -
hi i got this macbook that was stuck on apple logo. tried ssd on another board and it work perfectly.
tried also pram nvram reset, smc reset, safe mode, verbose etc etc but always same thing: laptop power on with chime... stay on apple logo for like 60 seconds and then reboot.
today im getting t3 screw and take board apart, but it seems to have no liquid spill or similar. top of the board is perfect and like new....
anyone got that similar problem? bios or what ? -
Hello,
This Macbook Pro 2018 boots up and then gets stuck on the logo.
All the normal methods of resetting this Macbook have been tried but do not work.
I cannot get into recovery mode and there is no bar displaying, it's just the white logo on a black background.
Any help would be greatly appriciated.... -
Apple MacBook Air 13-Inch A2179 820-01958 Schematic & Board View...10-01-2024, 06:40 AM
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Apple MacBook Air A2179 820-01958 Schematic & BoardView...
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