GW Instek GDS-3000 Series DS3-SBD Serial Bus decode - Manual (Page 7)

GETTING STARTED
7
5. Use the Variable knob and Select key to select
the activation key from the USB root directory.
When prompted to continue, press the Select
key again.
Files: XX.LIS
Confirm
Activation key Press B1 on the front panel to see if the
Serial Bus decode activation worked.