Unhappy [Q] Please help bricked verizon gs3

I tried to boot into recovery on my verizon gs3 but the bootloader was locked so i got the yellow triangle of death i then tried to flash somthing on odin and now i have a message that says firmware upgrade encoutered an issue please use software repair assistant and try again. the only problem is when i plug my phone into my pc it says usb device not recognized. i have downloaded samsung kies and samsung drivers. please help and provide and download links. any help is much appreaciated