what files do you have for the console. what current hardware do you have ? do you have access to a external nand flasher or are you using a plugin nand r/w tool ?
could you upload some pictures of the install and give us a little more information. if you have a backup of a nand dump or a update file for the console then you will just have to recreate a nand image in jrunner and write it to the console possibly with a external device (such as nand-x or jrp) if a attempted update has cause the console to not boot correctly.