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A more affordable, purely handheld version of the Nintendo Switch game console, with integrated Joy-Con controllers and a slightly smaller screen. Released September 20, 2019.

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Blank Screen after replacing JoyCon

I replaced my Switch Lite's left JoyCon, but now the screen will not turn on. The fan spins up, and the speakers make noise when I press any buttons. How can I fix this?

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5 Comments

what do you mean by replaced the joycon? the analog stick?

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did you mean you replaced the buttons? or did you choose the wrong device/modified the lite?

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@sadmango Yes, I meant that I replaced the analog stick, sorry for the misunderstanding.

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@timtomissus I replaced the moving analog stick, as it was broken off.

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Same problem but right side

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3 Answers

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Check the small ribbons about halfway up on the left of the board are seated properly. Below the card reader if I remember correctly. One is for the back light and if not inserted correctly causes a black screen.

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Both ribbon cables seem to be seated properly, they are in as far as they can go, the gold contact is facing up, and the fastener is secured.

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check the ribbon connecting the daughter board to the motherboard, make sure on the daughter board side the gold contacts on the ribbon are facing up and not down

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Both ribbons appear to be secured properly, with gold contacts facing up and inserted as far as they can go. I'm really stumped here

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If you still have the original joycon, then you could try to put it back.

This would help rule out potential hardware issues with the new joycon, if you are 100% sure it's not a poor seat on a ribbon connector.

I would also inspect and unseat the screen ribbons and make sure they and the connector slots are clean.

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Aidan wheeler will be eternally grateful.
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