Balokzx I tried to connect my external USB microphone to my 8a, it's powered on but not recognized on 8a under GrapheneOS
treequell Under Settings > Security & privacy > Exploit protection > USB port, do you have any of the Charging only options selected? If you have Charging only when locked selected, ensure that you plug in the USB device when the phone's screen is unlocked.
Balokzx treequell I checked in the Settings > Security & privacy > Exploit protection > USB-C port , I have already put "On"