tp might be bricked or is bricked

[B3GV]

hello guys i need some help now i dont know if i have bricked my phone or not i was flashing a rom and right when it got to the percent screen after the tri color screen i got an error, dont remember what it said, now the computer is not recognizing the phone, i tried going in to bootloader manually and when i connect it doesnt chage from serial to usb, can someone please guide me or suggestion for what to do any help will be great
Thanks a lot