device connection trouble

[assassination]

i was running the rom updater utility to install a 6.1 rom and it didnt get past the 0% on the installation screen when it told me i had an update error and a soft reset would fix it. it didnt and did the same thing next time. now my phone wont connect with the pc so im pretty frustrated right now. it charges it via usb but my pc cannot find the phone device itself any help??