Help samsung g955fd root problem

[delwar]

samsung g55fd u7 rmm prenormal certificate ng need patch certificate but i can't root it when i want to flash recovery its give error device 7 binary 4 any one can help me please.

 

[perata]

hi
check frp & oem off or on!!

 

[delwar]

hi
check frp & oem off or on!!

both are off

 

[perata]

both are off

write file in AP by odin & try
ROOT_G955FD U7 9.0.tar

 

[delwar]

fa

write file in AP by odin & try
ROOT_G955FD U7 9.0.tar

no luck fail only official released binaries are allowed to be flashed(BOOT)
this is phone screen message
Sir my phone soft version G955FXXS7DTB6

 

[perata]

fa
no luck fail only official released binaries are allowed to be flashed(BOOT)
this is phone screen message
Sir my phone soft version G955FXXS7DTB6

Does the flash accept or not
Try to flash the phone, then try the root file
What is the problem with the phone?