help needed for s6 edge SM-G925i

I Have s6 edge g925i...i m stucked at samsung s6 edge logo...when i enter recovery mode it shows "dm-verity verification failed..need to check DRK first...i tried flashing stock firmware 5.1.1 with odin 3.10.6 and it is successfully getting flashed but still at same condition :( help me people :(