Your tablet is stuck in “Charging only” mode. Unlock the tablet, swipe down, tap the USB notification, and change to “Transfer files (MTP).” If that option is missing, restart the tablet.
Technical Analysis of USB Drivers for Samsung Galaxy Note 10.1 (GT-N8000) Samsung Galaxy Note 10.1 (GT-N8000) usb driver for samsung galaxy note 10.1 gt-n8000
: Update the tablet's operating system via your computer. Your tablet is stuck in “Charging only” mode
: Back up contacts, messages, and calendar data. tap the USB notification