hi maybe you can help me

I dont know if you are the right people/ person to ask. i appologize if you are not.

I have a google nexus . i have either soft or hardbricked it. I think i probably deleted the bootloader on it. It just hangs on the google loading screen. It is not in fastboot or adb mode. nexus root toolkit google nexus toolkit and odin cant locate it. I run linux mint 15 (ubuntu 12.04) and have begun to develop a working knowledge of udev lspci etc. . I have a maguro bootloader image (bootloader- maguro-primelc03_4.2.2img) but i haven't been able to find a delivery system, if indeed that is the problem. It seems like linaro-android-media-create might do the job but i am quite nervous about doing more damage.

thank you for your time