Recent content by Rper123

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    820-00165 - EFI?

    The working file: https://easyupload.io/r6tf3x Ok, I will try to install windows.
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    820-00165 - EFI?

    Removed R1921, tried the original file, also clean ME BIOS, the same result. It just turn off. When you say working BIOS do you mean EFI that doesn't get board to turn off and it can't load osx?
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    820-00165 - EFI?

    Narek: I had searched and found out that 820-00165 EFI is interchangeable no matter if board is from 2015 or 2017. 2informaticos: I tried your file but the result is just the same. The board turns on and shuts off after 15 sec. This is strange.
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    820-00165 - EFI?

    Board 820-00165, 2017, 2,2 ghz, i7. Initial problem: fan spins about 15 sec and stops. Replaced U6100 from 820-00165, 2015, 8 gb donor board just to check if EFI could be the problem. Board turns on but of course never boots into osx. Then I cleaned ME region with Medusa 3 but the problem is...
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    820-01521 won't turn on

    820-01521 (Macbook air 2018) no sign of liquid spill. Customer said that it just shut off suddenly and wouldn't turn on again and that it was more and more warm with time before it died. Without battery connected it measures 5V and takes 0,40A for 2-3 seconds, then 0A and again 0,40A. With...
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    820-00165 - not posting

    "Which area?" - See attached image PLT_RESET_L goes high, 3,3V. Measured every SPI Bus Series Termination resistor and everything looks fine. Tried also clean ME BIOS. Can it be bad SMC?
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    820-00165 - not posting

    Hi, Came in with little bit corrosion on the upper side. Fan turns on for 1 sec, then turns on again for about 15 sec then turns again and it does't stop but no post. L7310/L7320 = 1,7V L7630=1V L7430=1,2V. Have tried another U6100 but all the same.
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    820-00840 - no CPU activity

    Ok, thanks. Will order it :)
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    820-00840 - no CPU activity

    Yes, they do. I send LB number, like 820-00840-A and serial number. It's about 15 pounds.
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    820-00840 - no CPU activity

    I looked wrong. It took 0.37A. Just replaced BIOS from a donor board before I read your post. It shows the image of apple now. I don't have BIOS programmer. Have to order reprogrammed BIOS chip from Ebay.uk. Thanks 2informaticos (y)
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    820-00840 - no CPU activity

    Hi, No sign of corrosion. 20V on both USB-C ports. 0,33-0,037A. Fan starts, but no chime, no activity on external USB or image on external display. L7210/L7220 0,9V which seems ok to me. Where to start?
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    820-00923 - no display

    Thanks for your help :)
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    820-00923 - no display

    Just measured the LVDS cable connector. It is pin 1 (EDP_INT_AUX_N).There is only 80ohm between pin 1 and the next pin 43 (PPVOUT_S0_LCDBKLT).
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    820-00923 - no display

    There is a pin burnt in lcd connector on lcd side and on connector cable. Replaced it and tried with test lcd but it's like it is not recognised. I'm thinking to lift U8510 and measure EDP_PANEL_PWR_EN. I can't se other ways to do it.
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    820-00923 - no display

    Water damaged. Ok on external display but blank screen on internal lcd also on test lcd. PP5V_S0SW_LCD 0V. Any idea?
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