Hardware Right Joy Con Rail without function

Gaba90 · Aug 5, 2021

Hi everyone, so I decided to put atmosphere on my switch and to get into rcm mode I used the method mentioned here in the forums to put a small piece of tinfoil into the right Joy Con (between pins 9 and 10).

Since then my right Joy Con Rail seems to have stopped functioning, and only the Rail. The connection light on it doesn't turn on anymore and also the sl and sr buttons on it won't work. Everything else regarding the joy con works as usual, just the Rail buttons / function seems to be broken.

Is this reperable or do I need a new joy con?

laramie · Aug 5, 2021

Gaba90 said:
Hi everyone, so I decided to put atmosphere on my switch and to get into rcm mode I used the method mentioned here in the forums to put a small piece of tinfoil into the right Joy Con (between pins 9 and 10).

Since then my right Joy Con Rail seems to have stopped functioning, and only the Rail. The connection light on it doesn't turn on anymore and also the sl and sr buttons on it won't work. Everything else regarding the joy con works as usual, just the Rail buttons / function seems to be broken.

Is this reperable or do I need a new joy con?

It sounds like you shorted more than pins nine and ten. You have a multimeter to check? Worst case you might need to replace the internal rail board.

Gaba90 · Aug 5, 2021

Thanks for your quick reply! Yeah the tinfoil probably moved a little bit while sliding the joycon in and touched another pin.

I found this substitute part which is the connector for the sl/sr and connection lights..
Or should I buy a bigger repair kit in case something else is broken?

laramie · Aug 5, 2021

Gaba90 said:
Thanks for your quick reply! Yeah the tinfoil probably moved a little bit while sliding the joycon in and touched another pin.

I found this substitute part which is the connector for the sl/sr and connection lights..
Or should I buy a bigger repair kit in case something else is broken?

If that kit comes with the ribbon cables that sit inside the rail on the switch then yeah that is all. It's mainly about replacing that since that is where the bridge or short happened. It's hard to tell if that short did other damage without using a multimeter to test the rail board as well as shorting things can kill those daughter boards and that would need to be replaced too, if borked. I don't think it can do enough damage to the other boards though so that's good news. I would recommend either enabling autoRCM or modifying the right joycon and bridge those nine and ten pins so you can just slide it on without worry of a short. It does involve a little soldering but it's not to bad if you stick to low temps and use flux.
https://noirscape.github.io/RCM-Guide/

Gaba90 · Aug 5, 2021

Sadly I dont have a multimeter at home. But looking at the rest of the joy con functions (charging, slide in recognition, rest of the buttons, gyro) it all seems to work fine. I enabled autorcm in my cfw just now

thank you for the useful tips!
now I'm gonna change that rail connector when the parts arrive and hope that will be it.

laramie · Aug 5, 2021

Gaba90 said:
Sadly I dont have a multimeter at home. But looking at the rest of the joy con functions (charging, slide in recognition, rest of the buttons, gyro) it all seems to work fine. I enabled autorcm in my cfw just now thank you for the useful tips!
now I'm gonna change that rail connector when the parts arrive and hope that will be it.

Good luck! Hopefully nothing else got shorted.

Hardware Right Joy Con Rail without function

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