Just recently bought a True USB Willem GQ-X3 for some flashing needs and I seemed to have stumbled upon a roadblock. I have been trying to read from a PLCC SST 39sf040 70-4I-NH with the plcc32 to dip32 adapter. Upon starting usbprg2.0 it stalls and then becomes unresponsive in both vista and windows xp on different chipsets. I have been successful with other chips such as some tsop and 1 plcc chip I have, so the programmer does function correctly.
ZLM, thank you very much for your input. This method does work. Part of this method crossed my mind but I really didn't feel comfortable putting the chip in while it was running, but hearing it from you seems to sound ok.