I use the following fuse settings. L=0XFF H=0XDE Ex=0X05 Lock=0X0FHowever, after setting the fuses, if I exit the fuse settings page an return again, the Low and High are correct but the Extended has changed to 0XFD? Also the lockbit has changed to 0XFF?
If I burn the bootloader first and then set the fuses and lockbits, after exiting and reading fuses again fuses are as above but the lock bit reads 0XCF. Why would these change?