Originally Posted by playya
Is it a driver issue? You have to get the drivers loaded or you may be stuck. What steps have you taken so far.
I had this happen to me as well on another device but I loaded up drivers and then used adb to push files back over on a N4
Basically all you can do there is re-install the drivers, cause it seems they're non-existent or incorrect.
-reload the drivers [force them perhaps if on win 7]
-connect to pc with phone in fastboot
-in twrp go to advanced > sideload > start process
-add your rom to your adb folder
open a command window in your adb folder [shift + right click for short] then type adb sideload myfile.zip , and the phone will flash the file, and you can reboot.