When I plug in a drive to the phone using USB-C and go to USB Preferences, it automatically picks: "USB controlled by: Connected device.

When I try to change to: "This device" the operation fails.

Tried so far: Formatting to exFAT. -->Same issue

No option for FAT32 format when formatting on mac

Also tried partioning with exFAT --> Same issue.

All operatin systems are up to date.

    sillyduck3 Formatting can be done by the device itself, try wiping the devices partition table and formatting on the device itself?

      raccoondad

      Yes, it partitions to exFat but does not show up on the phone when plugged in via USB-C, or more precisely it gets stuck on "USB controlled by: Connected device" referring to the external drive itself. And will not allow me to connect to: "This device"