My USB preferences are greyed out, I'm unable to transfer files when plugged in my Pixel 2 XL - Google Pixel Community
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5.1 lollipop - USB debugging option greyed out in Samsung Galaxy J5 runing Android 5.1.1 - Android Enthusiasts Stack Exchange
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USB Tethering Grayed Out Android | USB Greyed Out Android | USB Preferences Greyed Out Android - YouTube
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