Stuck at verizon screen

I have a SCH-I800 Verizon tablet... It continues to show the verizon logo. I attempted to flash the original rom, yet when in the recovery menu it shows

E:Can't mount /dev/block/mmcblk0p1

(No such file or directory)

E:Can't mount CACHE:recovery/command

and so on... Can you guys help me fix this? I bought this tablet online and thought i could fix it when repairing a stock rom yet it doesnt work still? I tried to partition and still does this