c0nb0x keeps giving me the error

so i tried programming the chip with my programmer http://www.advin.com/eprom-programmer/e ... r-580A.htm
Loads firmware fine, but when i put the chip back in the x0x it doesnt work, tried burning a few different FW and all the same. dead x0x
Is the bootloader contained in the FW? or how can I get the bootloader back on the chip.

