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  1. K

    A2681 820-02872

    To swap data, what components do I need besides the CPU and NANDs? For example, on an iPhone, you need the EEPROM with
  2. K

    A2681 820-02872

    motherboard swap with data and i say the value after
  3. K

    A2681 820-02872

    As I said at the beginning of the post, I don't have backlighting, the USB-C ports don't work, and the keyboard and trackpad don't work. You didn't answer my question. I asked: If I do a swap, can you tell me which components to swap?
  4. K

    A2681 820-02872

    yeah same thing in internal screen. i have say the internal keyboard not working.
  5. K

    A2681 820-02872

    I have a screen, but I don't get any display when I connect the Mac externally. I tried connecting and disconnecting the screen cable. I tried closing the cover, but got the same result.
  6. K

    A2681 820-02872

    No, we don't have any external displays. The exact reference number for the motherboard is 820-02536-A.
  7. K

    A2681 820-02872

    Hello, I have an A2681, it got wet, the customer brought it back to another store and then to us. I found oxidation on the backlight area, next to UP950, UR630, and UR600. We also found some oxidation on UF 350. I cleaned it and replaced it. Before, it wouldn't start, but I replaced UR630...
  8. K

    A1990 820-0928 no display

    The computer always stays at 1V and it fans.
  9. K

    A1990 820-0928 no display

    The computer consumes 20v and 1a, so it's normal consumption, but I have no display and the battery is disconnected. I tried the chassis and it's fine. I put a another motherboard and everything works. LA-300: 1.35V ok LA-350: 0.9V ok LA-640: 0.9V ok LA-650: 0.9V ok L-7330: 1V ok L-7231: 1V ok...
  10. K

    A3114 Trackpad and keyboard not working

    yeah and i have replace 2 time the daughter board same thing
  11. K

    A3114 Trackpad and keyboard not working

    Didn't you ask for it, and be nice? I have the 820-03286.
  12. K

    A3114 Trackpad and keyboard not working

    We use XinZhiZao as software, but we don't have the values. If you have your schematics and board view or software, please send them to us.
  13. K

    A3114 Trackpad and keyboard not working

    We replaced the slot on the motherboard for the trackpad and keyboard slot, but nothing changed.
  14. K

    A3114 Trackpad and keyboard not working

    Okay, let's see about that. When I reassembled it the first time, I lost the backlighting, so I replaced the UP700 and it worked perfectly.
  15. K

    A3114 Trackpad and keyboard not working

    I have a MacBook that won't turn on (1). I replaced the UF500 and UF400, and it worked perfectly. I have another MacBook A3114 that won't turn on (2) When I wanted to swap the motherboards and tried them in each other's chassis, I was surprised to find that in the first chassis (1), the...
  16. K

    A2338 on 5V (820-02020)

    260 Ohm Red on ground 570 Ohm Black on ground
  17. K

    A2338 on 5V (820-02020)

    1V25_S2 no value and I have 260 ohms and it is not short-circuited and I have the same value before changing U7700 and U8100 I tried but nothing works, it does not enter DFU mode
  18. K

    A2338 on 5V (820-02020)

    We replaced U8100 and U7700. PP1V5_UPC0_CORE OK PP3V3-UPC06_LDO OK PPVBUS_USBC0 5V USBC0_CC1 1.6V RF403 I have 0.5V It does exactly the same thing. We connected it to the computer and it is not detected in DFU mode. Afterwards, the computer stays at 5V and does not switch to 20V. What is...
  19. K

    A2338 on 5V (820-02020)

    A2338 remains at 5V and 0.018A (The motherboard has not been damaged by water; it is in perfect condition.) I checked UF500 and UF400; both are fine. We checked them on another motherboard, and they output 20V. I flashed UF260, but nothing changed. We even replaced U5200, but nothing changed...
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