I have a FAT32 USB drive, with some content on that I usually sideload to my Oculus Go.
When attaching it to my Oculus Go, there's a sound which audible let's me know that the USB is connected. You can hear a different sound when you detach the USB drive. Unfortunately, the Gallery does not show the External Drive as an option, so I can't find any of the content.
What makes a USB drive OTG ready, as explained on this support page, or what else could be wrong?https://support.oculus.com/1909580119121971/#faq_1909580119121971