The device wrtie protect will only come into play if you reprogram or copy the calibration EEPROM.
Yes there are a lot of the device programmers that will by default set the EEPROM to write protect ....found this out this that hard way a while back.? I think one of my programmers had write protect enabled by default? and the other one did not.? Believe I may have posted something about this to the old Yahoo groups as well.
Was only copying the device to make it easier to swap control /processor boards IIRC
Normally only the processor board switch? write enable? would change and by default I leave mine in the protect mode which does not throw an error unless you are in a calibration routine,
Usually those will instruct you to switch it off while in the routine.
