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    820-3209 A1466 I/O Board

    820-3213 available, similar to 820-3214 but component placement is a little different.
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    820-2879-B

    MacBook Pro 13" 2010 absolutely requires PC3-8500 sticks, it won't work with faster ones.
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    820-00138 no backlight though has 51,2V on output

    https://logi.wiki/index.php/Backlight_Troubleshooting#LP8548_.2B_LP8549
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    820-3115-b - weird graphics problem

    GMUX firmware mod can still do brightness adjustment with either PCH microvia jumper (software and keyboard control, soldering is risky to perform), raw keyboard signal (no software control, some jumpers required) or custom driver (software and keyboard control, no soldering required), depending...
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    820-3115-b - weird graphics problem

    That's an 820-2915 not an 820-3115.
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    820-01958 Need parts.

    FIrst thing is to check CPU VCore resistance to ground. CPU likely shorted if the previous owner messed with CPU VCore circuit.
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    820-00165 sleep mode when plugged in

    PP3V42_G3H doesn't make its way to the DC-in board, usually caused by bad FFC or J9500 indeed…
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    Green artifacts on black color 820-2523-B

    Why would you randomly reflow large BGAs for no reason? Good way to make sure to kill the board… LVDS line issue, often caused by GMUX. Can also be a broken trace elsewhere or a bad LCD connector.
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    820-2249-A high speed fan. Black Screen. No Chime

    see-ic still has some good ones (must buy them new with white underfill) but they are getting more and more expensive.
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    820-02020 UL000 "M1" pro (See RF chip removed Picture attached)

    https://logi.wiki/index.php/M1_MacBooks#WIFI_Module_death
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    820-02020 Short between PP3V8_AON_MPMU_ISNS_VIN <->PPVDD_PCPU_AWAKE. U8100 dead?

    M1 needs to be working anyway since it contains encryption keys. You can still try to replace U8100, if you're very lucky M1 may be fine. But first you can try to remove L8100/L8101/L8102 one by one to try to isolate the phases if there is only one shorted.
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    T2 firmware update process?

    https://logi.wiki/index.php/DFU_Mode_Restore_(Macs)
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    A1286 no image

    Normal to have 1-2 ohms on iGPU VCore for Ivy Bridge. iGPU VCore voltage is not expected to be present.
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    820-2101-A replaced GPU, boot chime wont go pass apple logo

    I think all the G84-603-A2 should have the good underfill yes (the white one). Chip shouldn't get discolored too much when soldering. If it is, it indeed may have gotten overheated. As 2informaticos said, profile will vary between rework stations but also between boards, so you have to calibrate...
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    820-2101-A replaced GPU, boot chime wont go pass apple logo

    Also be sure you got a good chip. Must have white underfill (not dark) and datecode > 0830 at least, model number G84-603-A2. Preferably "128-bit" memory bus, "64-bit" should still work if it's a good chip but it'll be limited to 128MB VRAM (it's probably a remarked G84-53-A2). Most chips on the...
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    A1369 It doesn't just turn on green light

    3023 is a lost cause anyway, don't waste time.
  17. P

    A1369 It doesn't just turn on green light

    Being a 3023 it's possible someone tried to reflow the RAM and killed it.
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