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    820-00928 Appears to be turning on. CPU & GPU. DFU not recognized.

    Hi. I have a 820-00928 that appears to be turning on but there is no image or sound. No image via thunderbolt/ HDMI either. I tried DFU but I get a "thunderbolt device not recognized" message. CPU & GPU is getting hot. 20v on USB-C meter. I'm not sure what to measure or look for as it...
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    820-02016 5V .450A liquid spill on CD32. Pulsating PMU U7700

    I have A2337 with liquid spillage on the CD32s and UF400/500 chips. One of the CD32s had a short on I2C_UPC0_ATCRTMR0_SCL however that is now restored. I now get 5V on USB-C and the device is cycling up to .450mah. The thermal cam indicates rapid heat pulsations on U7700, however there is no...
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    A2485 Not charging. Fan spin. minor liquid damage on charge FETs

    I have a A2485 that got a tiny streak of liquid damage on the on the FETs for charging the battery. Q5232 and Q5233. (Picture provided) Q5233 - CHGR_GATE_Q2 appeared to be shorted to GND. 0.00 in Diode mode. I cleaned pin 1-4 with some flux and solder and that appeared to relieve the short. D...
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    820-01700. No Image. L8504 Blown.

    I have a water damaged 820-01700 that I managed to restore back to 20V with boot chime however there is no image and the L8504 inductor close by the screen is blown. I tried replacing it but without any luck. LCD cable also replaced. Boot sound, charger sound, key press to voice works so I'm...
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    820-00165 3V instead of 3.3V on PPVRTC_G3H. DEAD CPU?

    Hi. I have a board with PM_SLP4 missing. PPVRTC_G3H is at 3V and not 3.3V Is this indicative of a dead CPU/PCH? Signal is coming from U0500. I'm not aware of any steps that comes before that. 18.5V 0.021A from PSU PPBUS_G3H 8.59V
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    A1990 820-01827 Liquid damage on U9580 SSD Buck. Likely Braindead?

    Hi. I believe this one might be braindead, but I would like a professional opinion before putting it to rest. A1990 820-01827 Liquid damage around CD32 and U9580. Got 5V on charger. I reflowed CD3215 and U9580 and 20V was restored. Board draws .450a and T2 Chip gets slightly hot under...
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    A2337 820-02016 5V 450mAh Liquid Damage

    Hi. This is my first post. I have limited experience with the M series of MacBooks. I consider myself decent at soldering but I lack experience when it comes to more advanced motherboard troubleshooting. I hope I can learn something from all of you! Thank you. I have a 820-02016 with liquid...
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