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If you cannot turn on developer mode, you need to verify your Developer account on Oculus. From 1st Feb 2021 all users new and existing must verify their developer account. More info here: https://sidequestvr.atlassian.net/l/c/X7L4Axpu
Authorize in headset in the top right corner: Put you headset on and authorise the USB debugging in the headset when prompted.
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Earlier versions of Windows are not Supported.
Mobile phones and tablets are not supported.
Apple Products are not supported.