Error flashing stock ROM Samsung S7 Edge SM-G935FD, FRP lock on, not rooted

[6r3k0z]

Tried wiping cache partition, wiping data/factory reset before flashing stock ROM.

Error flashing stock ROM, used G935FXXS2ERH6_G935FOLB2ERGE from sammobile.

Error after flash stock ROM:
#fail to openrecovery_cause(No such file or directory)#
#Reboot Recovery Cause is [UNKNOWN]#
No Support SINGLE-SKU

File-Based OTA
E:failed to mount /efs (Invalid argument)
Supported API: 3
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
dm-verity verification failed..
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)

Also tried flashing with TWRP via ODIN but failed due to FRP lock.

Can anyone help or have experienced the same issue?

 

[Delgoth]

Tried wiping cache partition, wiping data/factory reset before flashing stock ROM.

Error flashing stock ROM, used G935FXXS2ERH6_G935FOLB2ERGE from sammobile.

Error after flash stock ROM:
#fail to openrecovery_cause(No such file or directory)#
#Reboot Recovery Cause is [UNKNOWN]#
No Support SINGLE-SKU

File-Based OTA
E:failed to mount /efs (Invalid argument)
Supported API: 3
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
dm-verity verification failed..
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)
E:failed to mount /efs (Invalid argument)

Also tried flashing with TWRP via ODIN but failed due to FRP lock.

Can anyone help or have experienced the same issue?

Binary 2 Combination File, then back to stock.