Re: Macbook Pro 13 Non Touch 820-00875-A Can't See SSD
Did you solved that issue?...
crazeej
Member
Last Activity: 04-13-2025, 07:40 AM
Joined: 01-07-2019
Location: Alsfeld
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Re: 820-00840 bootloop
OK, thx Mate. Im gona Check it later. I'm at work right now....Leave a comment:
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Re: 820-00840 bootloop
Aht telling me : vdh002 - memory problems
Mri getting stuck at ram test
Hackintosh forums have similar problems, could be related on ram efi?
Hmm dead cpu or ? -.-Leave a comment:
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Re: 820-00840 bootloop
In verbose mode I'm getting until this point. What should load next? Than restarts again .. Anyone a idea?...Leave a comment:
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Re: 820-00840 bootloop
I tried it with a few external and internal ssd. S with no change. Changed the efi with a known good one. Same issue, now I reflowed u2800 and checked the resistors. Could that liquid on r2891/92/92 killed a part from the cd3215?
Thx for assistance!...Leave a comment:
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Re: Need a clean ME for MacBook Air
Tahnk you piernov. i tried it. no post at all... just fanspin and vcore
any suggestions where i should look? hmmm u1950 couldnt be the fault. sorry just digging in to this world since one year
...
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Re: Need a clean ME for MacBook Air
no change but thank you very much PESTE!!!... meanwhile i tryed from my older 00165 board the efi... nothing.
so can be closed because ther is another issue.
thank you!!!...Leave a comment:
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Re: Need a clean ME for MacBook Air
820-00165 sorry.
2015-2016Last edited by crazeej; 03-25-2020, 11:08 AM.Leave a comment:
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Need a clean ME for MacBook Air
Hi, this is a Weird one.
at first it had sometimes fanspin without chime backlight or usb activity. sometimes - RARELY
tried a few me regions but nothing helped.
Plz Help ...
now i have fanspin one time, stops than starts again!
no chime no backlight or image!
usb ssd is lighting up but no cpu activity.
however cpu vcore measured after the inductors 1.710Volts.
Help plz. lost
...
Last edited by crazeej; 03-25-2020, 10:49 AM. -
Re: 820-00840 bootloop
Nobody? -.- any hint?
Could someone clear me ? On older MacBooks is it a bit easier than this one.
YellppppppLeave a comment:
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Re: Macbook air 820 - 00165 turn on, when arrive at the User password turn off
Check for corrosion around the ram and cpu mosfet area.Leave a comment:
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820-00840 bootloop
Hello guys!
A1708 had liquid damage around u2890 and resistors.
Replaced the resistors with new one and the machine is firing up. Anyway it's stuck in bootloop.
Apple-Logo - after 2-5seconds it's restarting so on and so forth.
No loading bar. Only apple logo
Smc bypass it's loading half way up and restart again.
Using extern SSD over usbc adapter. Don't have a onboard ssd.
Is this maybe a efi issue or could be u2800 damaged? I pulled the shield up, there was no liquid visible.
Thx a... -
Re: Boardview and schematics for 820-00239-A Macbook pro touchbar?
thank you!!...Leave a comment:
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Re: 820-2850 a1286 MacBook Pro No Keyboard/trackpad
Nothing? Nobody Had this issue?Leave a comment:
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820-2850 a1286 MacBook Pro No Keyboard/trackpad
Hello Guys, i have this uncommon fail of trackpad and Keyboard where:
No Keyboard and trackpad in OS -> USB Mouse works fine!
At Startup Press Option Key -> No Reaction!
I noticed If i Close the Screen - Screen wont Turn Off!
Measured around Keyboard 3v3s3 there. Pp3v42 there and smc on Off ist 3.42....
Smc issue maybe?
Where ist z2_boost_en coming from? OK trackpad, but which Signal activate the en Signal in the trackpad? So lost on this... Maybe eine non certified Tech can give me a hint?
U5805:
Pp18v5S3...Last edited by crazeej; 02-20-2020, 01:08 AM. -
Re: 820-01521 schematic
awsome!!!!!!!!!!!! muchas graciasLeave a comment:
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Re: Need help 820-00840-A no backlight Newbie here
Just check for output. I didn't have this boards yet. But it is always the same. Check output from u8400 , check resistance, if output is present at u8400 -> check the path to the screen. (If u8400 is the bolt boost cuircuit)
Maybe R8410 is broken? Check for power on both sides! Don't rush, take your time.
I don't have the boardview or schematic so I assume all your voltages what you posted are for the screen sense.
Also I remember one case where at screen sense L**** was...Leave a comment:
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Re: Apple MacBook Air "Core i7" efi request
Anyway, I took a another complete efi and shuved a clear me on it. Now it works perfect! Thank you all!!! Closed!Leave a comment:
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Re: Apple MacBook Air "Core i7" efi request
well, if i run flash image tool v10.0 r7 . ERROR!!! : MFS INIT ERROR : Failed to perform decomposition. error initalizing the existing mfs image.
so, should i just go ahead? me analyzer tells me, flash image tool 10.0.30.1054
told you, if i try this it will end in a desaster
...
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Re: Apple MacBook Air "Core i7" efi request
I can't find the right apple me region. I found a me on win raid , the slim type. A copied it from zero to xffff but this also won't work -.- I am not that software guy... Maybe I am flashing wrong with tl866? I did not uncheck anything in the software.
Anybody help?!!?...Leave a comment:
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