Hello! As the title states i was trying to perform a recovery on my ATT lumia 1520 (was going back to 8.0). When a warming popped up asking if i want to recovery with the sim card inserted. Since i thought the recovery processed was paused i remove the cable and remove the sim card. When i plug the cable back in and hit no(or continue) the screen went black. I have not be able to get any sign of life out of the phone at this moment. I have try holding down the (- volume key plus the power key) combo and (-volume key plus power and camera key) combo. Nothing i do seem to let me know that the phone is still up and running. I have downloaded the NSU with the latest update but that didn't seem to be of any help. I am just wondering if anyone have any ideal of what i should do next. Should i try disconnecting the battery and reconnecting it? Any help would be welcome. Thank you in advance!