Great. You mean setting it to auto-connect? Find the 'global.cfg' file. It's located somewhere in /system/config/ or the /system/profiles/... directories.
EDIT: see later post
https://www.mobileread.com/forums/sh...07&postcount=7
In global.cfg change 'usbmode=2' to 'usbmode=0'
0 = auto connect to PC
1 = only charge
2 = ask on connect
Another option is popping the cover and pulling the mSD card out. It might be EXT2/3 formatted though.