To find right SW for this phone is problem, because the some hardware (Not For Sale) can't be flashed with firmware that was writed for customer phone.
I have one CL75 and i that is not Not For Sale , but i can't flash only software that based for old hardware.
The next point : do you have flasher ?
I got a CL75 dead,i try to flash with Download Tool for Siemens v 6.31 but give me error message( port 1 timeout failed 12:BS_PMC_PLAIN) after "get flash size"..got anyone solution for that?