today i received a board a2681 820-02536 m2 this board stuck in 5 volt i check some volt all ok but pp3v3_aon is low, here 1.6v , when I hit the pmu it turned on, then after a while it did not turn on, then I changed pmu but same problem , someone help me what is the problem why pp3v3 is 1.6v i checked here no short
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Hi, my dear friends., Maybe this might be a stupid question or something I missed or do not know. I have 2 MacBook Air A2681 (Indentical color & EMC #), both LCD screens broken. Before ordering the LCD Screens I confirmed both worked with their respective batteries & AC Adapters, & they did 100%. The LCD Screens came in today & I replaced LCD for the 1st A2681. (Removed Battery Terminal cable for both Laptops before installation of LCDs). Perfect Screen & Booted up fine. But it did not work with battery. I checked the battery connector & it was seated in well/perfectly.... -
today I received MacBook Air A2681 M2 for repair. The MacBook is working have a startup sound and charging sound but no video on the screen I checked the backlight voltage which is 0V then I checked the backlight ic enable there is 0V on anyone please help me.
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Hi,
water damaged MacBook a2681 M2 draws 5v 0,4A, u7700 gets hot, so I guess it must be bad.. Now I wonder, where could I get that chip? there is nothing on aliexpress... is it only good from same doner board?
Thanks for help! -
Friends, please share the diagram and boardview of MacBook A2681 820-02862. Thank you
11-26-2024, 05:54 PM -
Got this macbook air that was not working.
after opening i found water damage on LID sensor, daughter board (where keyboard connects) and trackpad
There was spilled probably coffee (i’ve cleaned everyhting with pure water and afterwards with isopropyl alcohol
i’ve disconnected LID sensor, repaired flex on trackpad (the part thet connects to trackpad there were some pads heavy corroded to i’ve repaired them) and i was able to put macbook to DFU and restore.
but the keyboard was not working at all (no caps lock light). After dfu was done i’ve connected external keyboard...