How to get access to USB Disk from the Files app
USB Disk can appear in the "Location" section of the Files app, but you need to enable it in the Files app. To do so:
- Open the Files app,
- Select the "Browse" tab,
- Tap again on the "Browse" tab to make sure you are at the root of the navigation tree,
- Press the ellipsis (three dots) button,
- Press "Edit" (in the "Locations" section you can now see all apps that offer an integration with the Files app),
- Enable the switch next to USB Disk.
Once USB Disk is visible in the Files app, you will not only be able to access it from that app, but also from any app that uses the system file browser. For example, in the Mail app you can attach a file from USB Disk to an email. In Safari, when choosing a file to upload, you will be able to choose a file from USB Disk.