@imedia This is commands I used to follow, to write MYSBootloader,
avrdude -cusbasp -Pusb -b115200 -pm328p -e -u -Ulock:w:0x3f:m -qq -Uefuse:w:0x06:m -Uhfuse:w:0xDA:m -Ulfuse:w:0xF7:m -Ulock:w:0x0f:m
avrdude -cusbasp -Pusb -b115200 -pm328p -V -q -s -Uflash:w:MYSBootloaderV13pre.hex
avrdude -cusbasp -Pusb -b115200 -pm328p