Broken usb-c port or charging control chip?

Discussion in 'Switch - Console, Accessories & Hardware' started by Moquedami, Mar 9, 2018.

  1. KeoniAzugon

    KeoniAzugon GBAtemp Regular

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    Yup, the next step would be kinda time consuming. You would have to go hunting for all the traces in diode/continuity mode on the multimeter, keeping in mind which pins go to ground (Green on the diagram) Record as you go.
     
  2. guily6669

    guily6669 GbaTemp is my Drug

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    Yeah that is one of the most common problems on portable devices with not charging problems.

    A friend with iPhone 5 had the problem, he wanted me to open it, so I opened it, removed the battery and I charged it in my iMax B6 charger and it charged well and the phone was good, I couldn't find any problem inside.

    After all it was just dust on the charging port LOL, we cleaned and all was fine.
     
  3. Moquedami
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    Moquedami GBAtemp Regular

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    Well, i got the multimeter.
    Now, let's see if i got everything right.
    With the charger connected y check these points from the motherboard side:
    [​IMG]

    is that correct?
     
    Last edited by Moquedami, Mar 12, 2018
  4. brickmii82

    brickmii82 GBAtemp Advanced Fan

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    Maybe the heat was from a fried battery trying to charge? Is it possible the new battery won’t charge because the voltage is off? That would explain what fried the original. You could probe the charging wires and see if it’s putting out anything. I’m pretty sure these new batteries have fail safe chips that help prevent explosions. Or at least try to. They’d cut the charge if not proper.
     
  5. guily6669

    guily6669 GbaTemp is my Drug

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    Maybe as a workaround if you have a good charger like my Imax B6, maybe you could make a direct bypass to the battery and make a new custom charging port for it and the good thing is you can chose how much time you want the battery charged, though I wouldnt even recommend a 1C charge on those crap Li-ion batteries.

    Its not a good option, but if you never find the problem at least this might let you use the console as a workaround :wink:.
     
  6. WadsRUs

    WadsRUs Advanced Member

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    Sounds to me like some of the pins inside the USB C port on the Switch have been bent. This happens more than some people might imagine. Because the port is surface mounted (with some thru-hole connections for the mounting lugs) it would be very difficult, if not impossible, to replace without the right equipment. I say this because I've successfully repaired a few like this over the past few months.

    Do you have a powerful illuminated magnifier of any type? If so, have a look inside the port and see if any of the pins are bent.

    How do the USB C port pins get bent? Usually because somebody has tried to plug the wrong type of connector into the USB C port. I've also read about very young kids trying to push assorted things into the connector.

    Here's the port:

    https://www.ebay.com/itm/Replacemen...-for-Nintendo-Switch-NS-Console-/322981850155
     
    Last edited by WadsRUs, Mar 13, 2018
    KeoniAzugon likes this.
  7. guily6669

    guily6669 GbaTemp is my Drug

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    Even with proper use those usb ports of nowadays break easily... That looks hard to solder.

    And they are so little that is probably also hard to check with a multimeter...

    However the overheating is strange unless some pins are shorting, if they are not shorting probably soldering a new USB C won't fix.

    Everything should have bring magnetic charging ports
     
    Last edited by guily6669, Mar 13, 2018
  8. Moquedami
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    Moquedami GBAtemp Regular

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    A little update.
    I managed to test the charging port using the schematics from reswitched.tech
    The board seems to be getting the 5.15v all right, so the problem must be between the M92T36 and the BQ24193
    I could get any tv out signal when docked, so i think the M92T36 is the most probable cultprint.
    Even though i got a replacement IC, I don´t have the proper equipment or knowlege to do it, nor I know anyone willing to attemp the replacement.
    So i thought maybe i could solder one of this chargers to the battery to have a parallel charging port and keep using the console in portable or tabletop mode:

    [​IMG]
    Is this a good idea? What are the risks i should consider?
     
    Last edited by Moquedami, May 7, 2018
  9. nero99

    nero99 GBAtemp Addict

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    I think all you need is a soldering iron, some solder, desolder braid, and some no clean flux to remove the and replace the busted IC.
     
  10. Moquedami
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    Moquedami GBAtemp Regular

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    The thing is, the M92T36 is a really small component, it needs as SMD hot air soldering station and a microscope.
    I have neither.
     
  11. guily6669

    guily6669 GbaTemp is my Drug

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    I think you might be able to do it with just a heat gun, but that's still a hard sucker that I wouldn't mess with too my self...

    My friend bought a crap heat gun for the temporary YLOD fix on the PS3, 1 only worked 4 like 5min and his brother's PS3 he melted everything LOL:D.
     
  12. Trylk248

    Trylk248 GBAtemp Regular

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    NEVER EVER TRY TO REPAIR IT YOURSELF... DAMMIT. NOW YOU'RE STUCK WITH A BROKEN SWITCH AND NINTENDO WILL NOT REPAIR IT. Sorry, learn to read papers dude.
     
  13. Moquedami
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    Moquedami GBAtemp Regular

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    Probably you didn´t read what you just quoted so, i´ll say it again: "in my country there is no official warranty"
    The "send it to nintendo" solution is not an option in Argentina.
    Anyway, i managed to find someone with the knowlege to repair it and it´s charging fine now.
     
  14. Trylk248

    Trylk248 GBAtemp Regular

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    i did read the post. it's just a friendly advice i'm giving you there.
     
  15. Moquedami
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    Moquedami GBAtemp Regular

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    And i thank you for that.
    I wish i had official support here. I wouldn´t doubt for a minute sending the system to nintendo in that case.
     
  16. Jiehfeng

    Jiehfeng Wu-Wei

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    Finding that out myself.
    Have the exact same issue, managed to get it fixed?
     
  17. osaeed09

    osaeed09 Member

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  18. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    Alola
    What did they do to fix it? I'm honestly curious.
     
  19. Moquedami
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    Moquedami GBAtemp Regular

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    The drastic solution is replacing the M92T36, but this is a delicate procedure and needs the proper tools and micro soldering experience.
    In my case, some pasive components like resistors and capacitors were off value, so replacing those did the job.
    My switch now works fine and charges normally. The only side effect i found is that the processor wont turn off completely, even after the OS is shutdown, it still heats and consume battery, so i have to keep it suspended.
    This is problem of the M92T36 too that is failing in the power off sequence.
     
    Jiehfeng likes this.