N3DS failing to POST after Hardmod

Discussion in '3DS - Console, Accessories and Hardware' started by MrInEthical, May 21, 2017.

  1. MrInEthical
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    Okay. So I attempted to do a hard mod directly to the motherboard to make a NAND backup which went perfectly fine and I made a backup but, to my surprise, whenever I try to turn the system on it makes a loud pop and the top screen flashes very briefly. I've checked all the ribbon cables and they look fine. As I was "interneting" I found many people saying that the problem only happens when a ribbon cable is damaged or loose but inot my case it isn't.
    I looked closely at the motherboard and it seemed as if the resistor array to the left of the clock test pad (the one that says 095) had the bottom right two pins had been soldered together although I highly doubt it.
    I don't want to risk damaging the device further but I want to know of this could cause the device to fail to boot

    SOLVED: There was a 2 pin flat flex connector that I believe powered the cartridge board which was loose and needed to be taped down. Thanks to the people who helped :)

    EDIT2: Ok, I've come to the conclusion that the resistor array i soldered together by accident has destroyed the WiFi functionality. The MAC address of the device shows up as all zeros and when I turn WiFi on, the device crashes. Rip me.

    [​IMG]
     
    Last edited by MrInEthical, May 22, 2017
  2. Kubas_inko

    Kubas_inko 3DS Hardmoder

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    Same happened to me. Just disassemble and reassemble it. You have somewhere loosened ribbon cable. It can be on the mobo or on top screen on mini speaker mobo. Just make sure all your screen cables are as tight as possible, not only on mobo!!

    BTW which sd card reader have you used?
     
    Last edited by Kubas_inko, May 21, 2017
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  3. MrInEthical
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    I used a Transcend sd card reader but I'm not too sure what chip it uses. I'll check the top screen assembly tomorrow. Hope it works o7
     
  4. Kubas_inko

    Kubas_inko 3DS Hardmoder

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    I can say this for 100% it is caused by ribbon cable, but don't know which one or if it is ripped or just not tight enough.
     
  5. MrInEthical
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    Well I've checked the cables and they seem to seated securely. I'm seriously beginning to think I may have damaged the motherboard
     
  6. Kubas_inko

    Kubas_inko 3DS Hardmoder

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    Have you unplugged and plugged them? They might look like they are securely connected, but don't have to be. Also, you might look at the screen, because there are some ribbon cables too.
     
  7. MrInEthical
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    Is the screen clipped on or glued? I don't want to damage he screen by taking it off the case
     
  8. MrInEthical
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    Dude it worked I love you omg you are the best person in the world...
    Is what I thought until I put it all back together and it broke again. QQ
     
    Last edited by MrInEthical, May 22, 2017
  9. Kubas_inko

    Kubas_inko 3DS Hardmoder

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    lol well, everything is possible, maybe you really somehow screw mobo. I still think it is problem with some ribbon cables, but I don't want to argue
     
  10. MrInEthical
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    I managed to fix it. Check the op
     
  11. MrInEthical
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    MrInEthical Newbie

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    Ok, I've come to the conclusion that the resistor array i soldered together by accident has destroyed the WiFi functionality. The MAC address of the device shows up as all zeros and when I turn WiFi on, the device crashes. Rip me.
     
  12. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    You desoldered them right?
    Wifi board can be replaced, it shouldn't cost too much.
     
  13. MrInEthical
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    Its the New 3ds, The WiFi chip is directly soldered to the board and I don't have a reflow oven to reflow the damaged resistor array.
     
  14. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    You don't need a reflow oven, just a steady hand.
     
  15. MrInEthical
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    I don't trust myself after what happened, my iron is really old and it has a really wide chisel tip which is already the thickness of the SMD.
    Just to make sure, the WiFi SOC is the one right above the NAND SOC underneath the EMF shield right? It's hard to tell whether I damaged the resistor array and I don't want to damage it further by trying to fix something that isn't broken.