Re: Macbook Pro A1989 - 820-00850 A no boot
Hello,you may need U-BOS2 to flash bios .
apos
Member
Last Activity: 03-28-2025, 09:09 AM
Joined: 04-28-2022
Location: athens
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Re: a 2338 liquid damage 5v but works on battery
Hi again,I am checking the LDO power rails and i found that RF261 is missing on my board .Looks like board was made without it ,but in schematics exists.Try to put a new one and be back again .
ThxLeave a comment:
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a 1707 820-00928 20v 1.8A charging battery boot no screen no chime no fans spin
Hello , i have an a 1707 that is about to blow my mind.I was about to change battery and when i did it suddenly had chime but no screen .I removed keyboards cable from logic board then i had screen .I plugged it again the cable while MacBook pro was on and since then ,no chime no boot, voltages looks ok 20v 1.8A .EDP meter shows no problem ,Thermal camera shows heat on U7210 and U1100.
Any ideas will be helpful
Thxxx -
Re: a 2338 liquid damage 5v but works on battery
Thanks mon2 for your fast replay ,i cannot find in open board where the cd321 is located.
In the image below yellow has 5v red the one i have changed twice 0v.Also the charging port of UF 500 does not work .The other of UF400 gives 5v 0.40a.
I am not a genius in electronics i have to mention.
...
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a 2338 liquid damage 5v but works on battery
Hello,i have a Macbook pro 13 A2338 with liquid damage.The fact is that works on battery ,but battery cannot be charged.
There is an issue with USB ic UF 500 .I did change it but still not charging .
I bought the S-UEM2 from SoFix to help me out and gives me an error to UF 500.I did change it again but still 5v and battery not charging ...
Any help will be great.
Thxxxx -
Re: Macbook pro M1 A2338 820-02020 schematics boardview
AppreciateLeave a comment:
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Re: MacBook Pro 13-Inch 2020 — 820-01987 (A2289), 820-01949 (A2251)
Thanks mateLeave a comment:
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Re: MacBook Air "Core i5" 1.3 13" (Mid-2013) 820-3437-b schematic
Thank youLeave a comment:
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Re: Imac A1419 27" 820-01134-A Need Schematic & Board View
Thank you sirLeave a comment:
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Re: Boardview and schematics for 820-00239-A Macbook pro touchbar?
thxxxxxxxxLeave a comment:
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Re: Lenovo Legion 5 NM-D041 NO POWER
Thank you so much for your help!!!!!!Leave a comment:
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Lenovo Legion 5 NM-D041 NO POWER
Hello to all...
I have a Legion 5 NM-D041 with no power ..I checked the motherboard and i find out on chip that is really hot ..Extremely hot i would say. The name of the chip is RE-78 t 13..
I tried online to find it but no luck ....
Also The Big Lenovo chip IT 8227E-192 has a tiny hole on top of it ....
I post the 2 pics of the components ...Any help will be great
Thanks in Advance......Last edited by apos; 05-10-2022, 10:56 AM. -
Re: New Members - please post your introductions here
Hello, I am from Greece..I do occasionally repairs to motherboards from apple mostly ,consoles and some monitors.I do have the right equipment but my knowledge is limited at this time..Hope to learn more things here with your help..
Cheers!!!Leave a comment:
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