New 9500 firmware update links (2/18/10):
New 9500I USB update: ESCORT :: The Radar and Laser Experts
New 9500CI & 9500IX USB update: ESCORT :: The Radar and Laser Experts
Note for 9500i and 9500ix users without TSR: TSR itself has to be installed manually by Escort on the 9500i and 9500ix if you didn't purchase your unit with it.
The firmware update will not add TSR if your unit doesn't have it now.