i'm having trouble with my RGH hack. slim trinity mobo with xecuter coolrunner chip. i used nand-x to program the coolrunner(which works perfect) and then wrote the ecc file to the nand with the nand-x. it will boot into xell reloaded like this just perfectly. the problem is when i try to load up a freeboot image that i created with 360 multi builder. it loads on the nand fine, but for some reason will not boot. i can use the eject button to get into xell reloaded again. but will not go to the dash

You could try using rawflash v3 which is included with multi builder 0.3. It is a way of updating the flash in software, from a working xell startup. Xenon.elf and your nandflash.bin go on a USB key, then boot into xell, it will apply the hacked dash image.