Recent content by cpuentes23

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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Yes, I got 0.007 in diode scale. Just injected voltage into 3V3_G3H_RTC and U5104 showed up in thermal camera.
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    My bad. L6960/61: 15.3 Ohms, rest is Ok. L9020/21: It reads 172 Ohm, then 2.2 KO, then 0.6 KO, back to 172 Ohms, 2.2KO, 0.6 KO...
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    I did nothing, at the beginning I was thinking it was something related to SSD's just as many people claimed on internet. I also thought U7000 had something to do about it but it was Ok. Wasn't expecting to see PP1V8_SLPS2R shorted! That's it :). So, for: L6960/61: 6 Ohms L7030: 45.2 KOhms...
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Yes, I did. Im getting 1.7 Ohms only on these: L7221 / L7211 / L7231 L9080: 3.5 KOhms L9580: 6.8 KOhms
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    I know! PPBUS_G3H to ground: 21 Ohms. PPBUS_G3H to CPU coils: 21 Ohms CPU coils to ground: 1.7 Ohms Would be safe to inject 1V into PPBUS_G3H?
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Ok, I havent gotten the T2 replacement yet but I releived the short on PP1V8_SLPS2R rail, PPBUS_G3H still shorted to ground, Any suggestion? Thanks.
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    I've been reading about this issue, if the T2 chip is bad, it can be replaceable but touch ID wont work. Is that true?
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Well, the only component that is getting hot is the Apple T2 chip when voltage is injected. Could this be the issue? Thank you.
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Got it! Yes, I've got 0.003 without charger connected / in resitance mode: 6.1 ohms So just to confirm, should I inject voltage to the 1V8_SLPS2R rail? Thank you!
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    L7813 With charger: 0.0v Diode mode to ground: .003V ----------------- R7813 0 Ohm. You think reflowing the chip could be an option before replacing it? Thank you.
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    No, Im not getting 1.8V on that line. I was also checking voltages that U7800 outputs and nothing. May U7800 be bad? Let me know what you think. Thanks.
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    I thought maybe a component was causing a short to ground on 1V8_SLPS2R rail? sorry, I'm still learning. I've been checking other points of the same trail and the line seems to be broken, any ideas where I can run a wire? Gracias!
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Ah, sorry for the newbie mistake. Would be OK if I inject 1V to the 1V8_SLPS2R rail to find the short?
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    Macbook Pro A2141 820-01700-05 Wont turn on.

    Thank you 2informaticos! Happy to be here! Well, on "PPBUS_G3H to ground", I'm getting 0 Ohms with charger and 16.5 Ohms with battery connected. In diode mode 0.173 with charger and 0.008 with battery. U4802 signals - Lid closed. Pin 1 - 0.001v Pin 2 - 0.0v Pin 4 - 0.005v Pin 6 - 0.0v...
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