My samsung galaxy s6 (sm-g920p) has bricked

[AC Question]

My smartphone turned to bootloop after I accidently checked "Nand Erase" in Odin. Now couple of times I tried to reinstall firmware but it didn't made any changes, even tried different CSCs. BTW downgrade the OS is not likle to be possible (current ware 7.0). Found somewere wipe reset instaling via custom recovery might solve the problem. But unfortunately it couldn't be done because my FRP lock is on. So I can't neither enter to system, nor, obviously, turn on OAM to be able to install recovery.

Would be kindly glad if someone could find a solution