Droid razr xt912 no os installed soft bricked topic

Hi guys as the title says i have bricked the phone . i had a working liquid smooth rom v3.2 kitkat 4.4.4 installed using safe strap v3.73 but could not utilize the stock rom slot so i wiped it without backup intalled the custom rom it gave an error i didnt look at it and booted now i cant go back to safesttap
Only to boot menu selection which includes recovery ap fastboot bp tools etc . really need help guys and the battery's dead cant get it to charge

xt912 fastboot flash help topic

hello to everybody sorry if i duplicate any posts but here is my problem i have a xt912r from verizon and i accidently broken the original jb firmware and now i have a phone that doesn't work anymore i tried to put it in fastboot mode but is not recognized in any way in windows xp/7 or linux distributions the only way it's recognized is the sb flash mode but rsd lite gave me an error the phone couldn't go in fastboot so i cannot flash it in fastboot what can i do i have a factory cable but it gave the same error i tell above "the device couldn't be recognized and it has been stopped" <--(this in windows ) and ubuntu etc it wont appear even in the terminal with the command lsusb what can i do please help me im breaking my head on it thanks to all and sorry for my bad english