Weird/Faulty Charging Behavior

Discussion in 'Switch - Console, Accessories & Hardware' started by Gnasherrr, Jun 25, 2019.

  1. Gnasherrr
    OP

    Gnasherrr Newbie

    Newcomer
    1
    Jun 25, 2019
    United States
    Hi guys. My switch is having some really weird charging issue. The original charger is not recognized. Only non-factory generic USB chargers are recognized, and it draws about only 1 Amp, which is very slow. It also does not recognize the charger every single time. Directly plugging in the charger while screen is on will not work, I have to put it into sleep and then plug in the charger. Now the weirdest part is that the data transfer seems to be absolutely fine. I can do rcm payload injecting and rcm level usb mounting and data transfer just fine. However, in the OS itself i could not get goldleaf or tinfoil over usb to work. Also, since autorcm drains the battery quite a bit, when the battery is drained, the console won't charge while powered off. I would have to inject rcm and quickly switch it to a charger in order for it to charge. Note that this is likely not a port issue, since the data transfer is very stable and i tried pushing the jack a bit when a file copy is ongoing and it's not interrupted.

    What issue is this likely to be? I have access to a multimeter, and can do some diagnostics if someone can point me a direction. I have not done so since I have been playing it portable only and always plugged in, but this is starting to bother me. Thanks!
     
  2. TariqSoftDev

    TariqSoftDev ~Zexceil

    Member
    4
    Sep 18, 2013
    London
    Check M92T and BQ Behaviour; check battery info in hekate when using original plug and send screen shots; also use a multimeter to see if stock is outputting 15v to the first point behind the port on the board.
     
  3. Gnasherrr
    OP

    Gnasherrr Newbie

    Newcomer
    1
    Jun 25, 2019
    United States
    checked M92T pin 5 and 6 both normal with 3.3v. The top no.4 cap in horizontal placement is bad. short to ground on both end.

    I guess that's a good place to start to replace?

    I cant seem to figure out the orientation of the BQ chip on the board so I dont know which pins to test for the BQ. Could you point me further a bit?

    Thanks!
     
    Last edited by Gnasherrr, Jun 27, 2019
  4. Gnasherrr
    OP

    Gnasherrr Newbie

    Newcomer
    1
    Jun 25, 2019
    United States
    Also the top 3 10K resistors above BQ are reading 3.5k 220 and 10k respectively. Are those ordinary?
     
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