HardBricked nexus 7 (i think its HardBricked anyway) topic

Hi, im kinda new here, but i really need help. i think ive hardbricked my nexus 7 (it wont start and the bootloader is wiped, the computer recognize the device as "APX" or something like that) and in one post they talked about blob files and a blob tool, can anyone help me with that? i have no clue how to compile/decompile the blobtool and what program i should use, can anyone give me a tutorial of any kind? (with what programs to use and in what steps)

thanks ahed