is it possible to unbrick Galaxy n7000
 

I just bought a dongle to fix unknsown baseband (don't have it yet,it's in transit ), but now my phone bricked now i.e. black screen and can't boot into download mode. Just wonder if it could unbrick the phone or i have to send it out to unbrick with jtag. If yes please kindly email back instruction and any file to restore . Thx for the help in advance