Left JoyCon will not charge or connect to the switch

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Nintendo Switch

닌텐도 스위치는 도킹 스테이션을 통해 TV에서 플레이하거나 이동 중에도 플레이할 수 있는 휴대용 게임 콘솔입니다. 2017년 3월 3일 출시되었습니다.

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Riverside Wren @riversidewren

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게시일: 2024년 4월 17일

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Left JoyCon will not charge or connect to the switch

Hello,

my left JoyCon won't connect to the switch or charge on the switch or an external charger anymore.

Here's what I already tried:

My switch works with a different left joycon, so it's not the switch.
It worked in wireless mode until the battery died because I couldn't charge it anymore.
I tested every button in test mode, they all worked.
I triple checked the flat band connectors.
I cleaned the rail connectors with a toothbrush and isopropanol while turned off.
I exchanged the rail of the JoyCon.

Is there anything else to check? What would be the next step? Exchange the bord of the JoyCon?

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I think this in my originial post covers it: "My switch works with a different left joycon, so it's not the switch."

Riverside Wren 의 2024년 4월 18일

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I think this in my originial post covers it: "My switch works with a different left joycon, so it's not the switch." — Riverside Wren

koppie007 @dan0 평판: 11.8k 20 11 19 · Answer 1 · 2024-04-17T03:29:53-07:00

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koppie007 @dan0

평판: 11.8k

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게시일: 2024년 4월 17일

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Hi Wren!

So, you already tried to replace the Rail of the JoyCon it self, right?

Then I think the next step is to replace the battery, as the battery does not want to charge.

If this failed as well, we probably need to check the motherboard.

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Yes, I already replaced the Rail of the JoyCon. Does the battery replacement make sense when it also didn't connect in handheld mode while the battery was still charged?

Riverside Wren 의 2024년 4월 17일

Could still be battery related in weird circumstances... I would try it first. If the replacement battery does not work, return it and get a refund. Then it must be motherboard related.

koppie007 의 2024년 4월 17일

I switched the batteries between left and right JoyCon and the left one still doesn't connect but the right one charges. I'll order a new board then.

Riverside Wren 의 2024년 4월 18일

If the Joy-Con is having the exact same issue on another Switch, then this is probably the only part left which can cause it. Please let us know if a new board fixed it! Thanks

koppie007 의 2024년 4월 19일

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Nintendo Switch

Left JoyCon will not charge or connect to the switch

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