CrossRoads:
You burn the bootloader to get the fuses set up.You are not using a crystal? Then there is a change needed in the fuse selections.
I can research that some tomorrow night if someone else does not step in before then. I'm off to bed.uno_noP.bootloader.low_fuses=0xff
uno_noP.bootloader.high_fuses=0xde
uno_noP.bootloader.extended_fuses=0x05
uno_noP.build.f_cpu=16000000L
After I burn the new bootloader, then I change the board back to arduino UNO then upload code ?