Running 'lsusb' shows the following:
Bus 001 Device 010: ID 1bbb:a00e T & A Mobile Phones Android
Device shows up in file explorer when USB connection mode is set to MTP, but I can't seem to make it available to the guest OS.
EDIT: Fixed by adding myself to the vboxusers group. Now I keep getting Load NPRG Error 5002 in Sugar v11.9.7.
EDIT2: Same error on a Windows 7 32-bit guest OS install.