nexus wont connect via adb, fastboot or download mode. am i screwed?

[LINKSLOVESANDROID]

name says it all.. heard this phone was unbrickable. have a good feeling im bricked. and i aint getting outta this 1.

 

[suksit]

Did you install the driver?

 

[LINKSLOVESANDROID]

Did you install the driver?

yea, it messed up afert attempting to flash gri74 or somethin like thst sio i was back at stock