Hello I am trying to HP Dreamcolor profiler KZ300AA to work. I am using Debian testing and argyll 1.1.1. After setting the /etc/udev/rules.d/55-Argyll.rules and installing acl module, I am able to run spotread The profiler reports code 4c 4f 43 4b or "LOCK" as a string. Unlocking not done because of unrecognized device? Jarkko Lavinen $ spotread -D 5 usb_get_paths about to look through buses: usb_get_paths about to look through devices: usb_check_and_add() called with VID 0x1d6b, PID 0x1 usb_get_paths about to look through devices: usb_check_and_add() called with VID 0x971, PID 0x2003 usb_check_and_add() found known instrument usb_check_and_add() called with VID 0x1d6b, PID 0x1 usb_get_paths about to look through devices: usb_check_and_add() called with VID 0x1d6b, PID 0x1 usb_get_paths about to look through devices: usb_check_and_add() called with VID 0x1d6b, PID 0x1 managed to open serial "/dev/ttyS1" managed to open serial "/dev/ttyS0" managed to open serial "/dev/ttyS3" managed to open serial "/dev/ttyS2" i1disp: About to init coms i1disp: About to init USB icoms: About to set usb port characteristics icoms: About to open the USB port icoms: USB port needs opening icoms: About to open USB port 'usb:/bus0/dev9 (GretagMacbeth i1 Display)' icoms: USB port is now open icoms: Clearing any USB errors icoms: usb port characteristics set ok i1disp: Sending cmd 00 args '' response '4c 4f 43 4b 00' ICOM err 0x0 i1disp: init coms has suceeded i1disp: About to init instrument i1disp: about to check response and unlock instrument if needed i1disp: Sending cmd 00 args '4c 4f 43 4b 00' response '4c 4f 43 4b 00' ICOM err 0x0 i1disp: Sending cmd 0e args '47 72 4d 62' response '00' ICOM err 0x0 i1disp: Sending cmd 00 args '00' response '4c 4f 43 4b 00' ICOM err 0x0 i1disp: Sending cmd 0e args '4c 69 74 65' response '00' ICOM err 0x0 i1disp: Sending cmd 00 args '00' response '4c 4f 43 4b 00' ICOM err 0x0 i1disp: Sending cmd 0e args '4d 75 6e 6b' response '00' ICOM err 0x0 i1disp: Sending cmd 00 args '00' response '4c 4f 43 4b 00' ICOM err 0x0 icoms: delete called icoms: closing port usb_close_port() called usb port has been released and closed Instrument initialisation failed with 'Not expected instrument model' (Instrument status is unrecognised format)!