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Recent content by interaptiva

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    820-3662 chime but volume icon grayed

    Hi everyone, I have a macbook pro 820-3662 which emits the chime when powering up but when the system starts up I don't have any audio devices. I checked the voltages on U6201 PP_3V3 on pins 7-61-85 PP_4V5 on pins 77-129 I noticed that if I plug the headphones into the jack the device detects...
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    820-3437-B battery problem

    SCL and SDA lines readings 0.493 in diode mode
  3. I

    820-3437-B battery problem

    SCL/SDA are both 0.493
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    820-3437-B battery problem

    I tried several batteries, only with one in particular is detected. the others are not recognized. what is detected remains at 0% on the system info the battery is present but is not charging. the lightning bolt appears on the battery symbol at the top right
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    820-3437-B battery problem

    CHG_AMON is 0.25Volts CHG_BMON is 0.05Volts both battery and charger connected
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    820-3437-B battery problem

    the liquid damage was very light, there was a little oxide on the trackpad / keyboard, but nothing was visible on the board. resistance on pin 17-18 -------- 3.6 ohm resistance on pin 27-28 --------20.0 ohm PPBUS_G3H is 8.60 Volts without battery, only charger R7180 ------- 100k correct R7181...
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    820-3437-B battery problem

    Hi everyone, I have a 820-3437B with a strange problem: It has a liquid damage, does not start without a connected charger, the LED turns orange and the battery always remains at 0%. I checked if there was oxide on the board, I cleaned everything and I did a 150 ? reflow on the SMC chip. for a...
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