Mode 1 - No memory lock features enables
Mode 1 - SPM and LPM are allowed in the Application section
Mode 3 - SPM and LPM are prohibited in the Boot loader section

Fuse bits

Check only SPIEN=0

Uncheck BOOTRST=1

BOOTSZ=11
BODLEVEL=111
CKSEL=1111,SUT=11

Calibration value [54] not modificable

Uncheck Copy factory preprogrammed value to device memory

Calibration value=00000000