1. bombob

    bombob Advanced Member
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    Gotta go test my pins too

    Sent from my SM-N960U using Tapatalk
     
  2. Ttm3

    OP Ttm3 Member
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    Constant
     
  3. Pintglass

    Pintglass GBAtemp Fan
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    Are you testing these with some form of magnification?
    Have you changed the usb-c port at some point, what resistance to ground have you got on the vbus pins at the port.
     
  4. Ttm3

    OP Ttm3 Member
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    I did change the USB port. No continuity to ground on vbus.
     
  5. Pintglass

    Pintglass GBAtemp Fan
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    What about continuity to any of the other pins, check you've not got continuity between vbus and the cc lines.
     
  6. Ttm3

    OP Ttm3 Member
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  7. Ttm3

    OP Ttm3 Member
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    Okay so I swapped out the bq and the m92 again. Now with the oe Nintendo charger I get 15v at pin 1 of the bq chip. All voltages seem normal but it still reads 0 amps flowing.
     
    Last edited by Ttm3, May 24, 2020 at 6:54 AM
  8. Pintglass

    Pintglass GBAtemp Fan
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    What voltage have you got on the battery without charger connected.
    And what voltage have you got on pin 15 and 22 of bq24193 with the nintendo charger plugged in.
     
  9. Ttm3

    OP Ttm3 Member
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    Let me start by saying I really appreciate your help on this.
    I changed the bq chip one more time with a brand new one and I dropped some fresh solder on the pads while I was at it. That got me amperage. .41 and nothing on screen.... All that effort and I think the processor is bad . Unless someone has found a cure for that I'm afraid this board is going to the graveyard.
    Thanks again for all your effort
     
  10. Pintglass

    Pintglass GBAtemp Fan
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    Ok but it should still charge even if the soc has a short
     
  11. Ttm3

    OP Ttm3 Member
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    It does charge at .41 amps
     
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