When erasing a programmed XCF04S PROM with read-protect enabled, there are no errors. However, the following message occurs with a blank check:
"'1': The device has 'read-protection' enabled. No read operations are allowed when in this mode.
To disable read protection you must erase the device."
To work around this issue, erase the device again.
This problem has been fixed in the latest 6.2i Service Pack available at:
The first service pack containing the fix is 6.2i Service Pack 1.