I have Atmega2560 and I am able to burn bootloader code into this chip. I have followed this document http://soc.ninja/documentation/programming-atmega2560-with-arduino-uno-or-mega
So I changed 0xD8 to 0xD9 and after that I was able to download first Blinky code into board using FTDI. But now I am not able to download any other code into board.
Is changing fuse bits 0xD8 to 0xD9 is not correct?