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There's a video on YouTube that shows how to do a software update, good luck though you'll need a Chromebook or P.C. for the update.
Sorry, there was a problem. Please try again later.Connect your dongle to the PC/laptop. Then connect headset to PC via USB c connector Then go here and update firmware: https://support.logi.com/hc/en-us/articles/4407898529687-Download-G435-Gaming-Headset
Sorry, there was a problem. Please try again later.Try updating the headphones on the logitech website. Look up the item and click on the support tab there will be instructions on how to update the headphones.
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