Question. I heard that if you replace the OEM LCD on A1990 (MacBook Pro 15" 2018-2019) with another OEM LCD the T2 Chip will reject the OEM replacement of the other LCD. Can someone confirm if this is true or has anyone done the replacement on this model and has had success?
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MEOWING IN THE IMPOSSIBLE UNIVERSE! -
Re: A1990 lcd
T2 is not an issue. The issue is that the market is filled with garbage low quality LCD assemblies for T2 machine so you'll have all sort of issues with no backlight, low brightness, no image, tint shift, no ALS, no camera, no true tone, etc… Better get it replaced at Apple.OpenBoardView — https://github.com/OpenBoardView/OpenBoardView -
Re: A1990 lcd
As long as it’s OEM Apple Used it shouldn’t be a problem correct?sigpic
MEOWING IN THE IMPOSSIBLE UNIVERSE!Comment
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Re: A1990 lcd
Yes, should be good if it hasn't been badly "refurbished". Good OEM pulls are very hard to find. (except if you somehow have a machine you can pull it from of course)OpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
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Re: A1990 lcd
Ok just double checking! Thanks! I figured. We replaced a 2020 MacBook Pro 13” lcd with no issue but heard odd things about A1990.sigpic
MEOWING IN THE IMPOSSIBLE UNIVERSE!Comment
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Hi there,
after I replaced the topcase of the Mac, there is no webcam, no True Tone, no keyboard backlight working and also in the display settings there is missing the option for automatic display brightness. When I run the Apple Hardware Test, there is no issue found.
I would highly appreciate any kind of hint.
Thank you. -
mb code:820-01827-A;
sn:C02Z349ALVDR;
i9 32GB Ram 1TB
Hi, I found short on one of 6 black nand (total 1TB).
i removed all 6 nand ( voltages all ok) and now i want to program with JC P15 but for A1990 2019 there is only 512GB configuration.
I try A2141 1TB configurazion with TSB4228 but the position on pcb is different ( U9300 and U9400 is no stuff on A1990 but present on A2141 and U8800 and U8900 is no stuff on A2141 but present on A1990 )
macbook with A2141 configuration run on recovery but don't complete it.
anyone can help me?05-26-2025, 09:27 AM -
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