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I have this really weird problem. Screen is 90% black (from bottom to top, only top bar is visible). I changed it with another from a donor but there was some dimmed and almost black lines on top. I tested his original display on another Macbook and it works perfectly fine, so I thought maybe...

Hi, I have the following problem. Client says a child entered apple id and password, now he doesn't remember them, nor the email. Nothing. Don't know whether this story is actually true, but now I'm stuck with this locked Macbook with Activation Lock. Any idea if it's possible to hard reset it...

No history. It just stopped powering on one day. LDO 9-PP1V8_AON_MPMU is present - 1.8V. VLDO 7-PP3V3_S2_UPC is NOT present. VLDO 3-PP1V2_S2 is NOT present. VDD_ANA-PP1V5_VLDOINT_MPMU is present 1.5V. BUCK OUTPUTS on U8100 are not present as well. I don't think we have U8100, but if we find...

Hi, I have the following problem. Macbook is not powering on at all. No sign of life. The voltage from the adapter is stuck at 5V. The voltage PP3V3_S2_UPC on the USB-C Port Controller is missing, but the port doesn't have any short circuits nor does the board. I see it's coming from PMU...

That's what I thought. Thank you so much for your help! Learned many new stuff. Keep up the good work!

No image on external monitor, even after disconnecting the internal LCD, tried good trackpad, nothing... Macbook turns on by itself (can't even shut it down without it starting immediately after), fans go to 100% after a while, that's it for now.

CPU core voltage is still 0.9V. Interesting observation is that the fans start accelerating towards approx. 100% after 20-30 seconds.

Sorry about the quote. I tried DFU mode (Host is M1 Macbook Air 2020). It starts installing and then with no error just stops and gives me a Lock Icon. Nothing more. Any further assistance? I am desparate at this point.

How do I do DFU revive without knowing what OS was present on the Macbook? Can I do DFU revive without needing second Macbook? Slight clarification would be greatly appreciated.

PPVCC_S0_CPU voltage is 0.939V No image on internal LCD, no image on external display.

Hi, everybody, I have the following problem: Macbook A2141, Motherboard 820-01700. The display isn't turning on, fans are spinning, no image on external monitor. The problem occured while Macbook was turned on. Voltage is there in all elements except for PPVCCGT_S0_CPU. Current consumption is...