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

Why does my RH controller keep losing connection?

Using my red RH controller it loses connection and re connects over and over. It doesn’t seem to be a battery issue but I haven’t ruled it out.

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Hi Chrisa!

The right one does have an antenna connected to it's motherboard. Please open the Joy-Con and check if the antenna is still connected properly to the motherboard. This could cause the random disconnects.

Does the Joy-Con work perfectly fine while attached to the Switch?

Could also be the "Broadcom BCM20734 Bluetooth 4.1/2.4 GHz Transceiver IC"...

This required soldering plus soldering skills to get it fixed.

To test if it's the battery or not, you can also buy a grip holder with USB-C! While it's connected to the cable and still losing it's connection, it's definitely the blue-tooth messing around.

Good luck! And please let us know how it goes!

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