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Repair guides and information for the Nintendo Switch Joy-Con controllers.

Right joycon only works with bloothooth and not without

Can this part of the Switch JoyCon cause the JoyCon's motherboard to stop working? The A, B, X, and Y buttons no longer work. I swapped them with one from a defective JoyCon and then swapped them back. But since then, the JoyCon that was already working fine hasn't worked either. I now suspect that both motherboards have developed a defect since I swapped them.

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https://youtube.com/shorts/84F1gIaOENs?f...

Update (12/12/25)

Hi, im afraid that there is not anything wrong with the connector or how its Connected. But that there is a deeper meaning to this.

I have tried to put the switch off flight mode then suddenly the joycon works but if i put it in flight mode again the joycon doesnt work anymore

https://youtu.be/wtZxREn_leM?feature=sha...

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Hi, im afraid that there is not anything wrong with the connector or how its Connected. But that there is a deeper meaning to this.

I have tried to put the switch off flight mode then suddenly the joycon works but if i put it in flight mode again the joycon doesnt work anymore

https://youtu.be/wtZxREn_leM?feature=sha...

[image|3911068]

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[image|3911066]

[image|3911057]

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Unfortunately, you might just be better off getting new joy-cons. The design of these things alone seems to be enough to hinder repair, not to mention the fact that they're just terrible to begin with. I would say put a new motherboard in, but at that point you may as well be buying a new controller, because the motherboards actually cost about the same amount as a brand new joy-con. We've seen that Nintendo is perfectly capable of building durable controllers (If you want an example, look for a GameCube controller. Those things last forever!), so they shouldn't have an excuse not to (Hint, hint, Nintendo!). If anyone happens to know Nintendo's contact information, please forward this message to them.

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All the controllers that are out there have their weaknesses. Even Gamecube and Joy-Con controllers. A new motherboard for the Joy-Con can be found for 15-30$. And a new one (only 1 side) could be 40$, so you will save some money for just replacing the motherboard. I think replacing the motherboard is a easy job. It will take time and you need to be carefull. But if you can find one for 15$, it sure is worth it.

Anyway, the Joy-Con is a nice controller, but has some downsides regarding the “L” and “R” buttons which are litterly breaking. And for “R” it’s even worse as it does come off the board together with the traces on it which require a motherboard repair. The LED ribbon cables are bad and can be damaged easily without touching the cable. And don’t forget the buckle lock that are made from plastic and are made to break with long time use (that is why they sell metal ones). And oh yeah, almost forgot the joy sticks it self…

It is a nice controller tho, but there is room for improvement in durability.

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Okay, I'll admit that they do have their strengths. But clearly, strength is not one of them... ironically. The R buttons on my Joy-cons just stopped working after maybe 3 years of normal use. When I opened them up (as any sensible tinkerer would), the internal switch literally fell apart in my fingers. Literally. And then there's the drifty-ness. These controllers probably drift more than any other controller on the face of the earth! Sure, maybe there are some downsides with the GameCube controller, like the cable that's way too short, but 3 out of 4 of mine still work like new, even after 20 some odd years of intense use. And you know what? There's not even a little drift in those joy-sticks! How? I have absolutely no clue. My best guess is that because the potentiometers re-calibrate themselves every time you plug the controller in or power on the console, whatever changes in resistance that may happen over time are mitigated, or at the very least, lessened.

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Hi!

That part is the rail of the Joy-Con.

This one is meant to connect the Joy-Con to the switch and for charging the Joy-Con. Usually you also have the LED board there to show you the status (connected to the Switch or Searching for the Switch and shows you the order (1st controller connected, 2nd etc).

When you have the Joy-Con disconnected from the Switch, do the buttons work?? If not, it could be related to the motherboard yes. But could also be related that something isn't properly connected.

Can you share some pictures with us inside the Joy-Cons?

Thank you!

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7 Comments:

Yes the joycon works if disatached from the switch only on bluetooth

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Im going to buy new joycon see if its the motherboard or joycon issue

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Okay, that is something. Maybe the rail is making a short here and thus you need to replace that one. You can also buy a new motherboard and see if that works. Buying a new rail first is also possible, to see if that solves it with the current motherboard.

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I swapped the rail of a donor right JoyCon with a JoyCon rail that worked perfectly. After seeing that the donor JoyCon wasn't working, I put it back in the perfectly working JoyCon. But now the perfectly working JoyCon stopped working as well. My question is: can a defective rail damage a motherboard, and can a defective motherboard damage a rail?

ik heb de rail van een donor rechter joycon gewisseld met een joycon rail die perfect werkte. maar na gezien te hebben dat de donor joycon niet werkte heb ik het weer terug gezet in de perfect werkende joycon. maar nu werkte de perfect werkende joycon ook niet meer. mijn vraag is kan een defecte rail een moederbord defect maken en kan een defecte moederbord een rail defect maken

https://youtube.com/shorts/goDvJzeP8QA?s...

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I have this feeling that the fault rail damaged the motherboard ( or faulty battery ) and that the motherboard damaged the rail making them both faulty so after i put the damaged rail in the perfectly good working motherboard that motherboard became damaged as well.

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