how do i change the roms using a null modem cable

[wendywitch]

can anyone tell me how to change the roms using a null modem cable only. i have managed to flash the image but want to change the roms. any help much appreciated

[Devilfish]

You can't. To add individual files you need to ftp via ethernet cable.

[wendywitch]

thanks. just thought if i could flsh it via the null modem cable i could change the roms