use the search and look for : how to recover hard bricked devices, I am pretty sure there is something you can do, and if everything fails get it to Samsung repair service and ask for help.
good luck my friend, the only advice I would give to the people who own such devices is DO NOT FLASH YOU TABLET FOR NOTHING! IT IS A USFUL TOOL TO READ AND MAKE PHONE CALLS NOT FOR BETA TESTING ALMOST ANY AVAILABLE ROM OVER THE NET.
Sent from my GT-P1000 using Tapatalk
My devices :
PDA : Casio Cassiopeia E-125 (sold) ..many.. to HP HX4700 (stolen)
Smartphone : Qtek S200 (to my brother) - Galaxy tab GT P1000 (sold)
Tablet : Galaxy Tab 7.7 GT-P6800 TGY updated to ICS (sold)
Galaxy Note 2 N7100 (current)