A510FDXXS3BPI1 6.0.1 How to unlock

I gate error in unlocking how to downgread and unlock I also tray root & direct unlock after root mobile hang in samsung

Platform: Samsung Android
Selected port: COM111
Selected model: SM-A510F
Port is busy
Searching for a phone. Please wait…
Please, press "OK" button on the phone to allow USB debugging..
Phone found.
Detected phone model: SM-A510F
Firmware compiled date: Wed Sep 14 19:26:12 KST 2016
PDA version: A510FXXS3BPIA
CSC version: A510FDOJP3BPI1
SW version: A510FDXXS3BPI1
Phone SN: R58H90ZG4TA
Android version: 6.0.1 (MMB29K)
Sales code: KSA
Country: KSA
HW platform: exynos5
HW Chip: exynos7580
HW Modem: SHANNON310
Codename: a5xeltexx
Performed by 2.4.0 Software version.

Read coad error

Platform: Samsung Android
Selected port: COM111
Selected model: SM-A510F
Searching for a phone. Please wait…
Found phone on COM139
Reading info…
Detected phone model: SM-A510FD
HW Version: SM-A510FZDFKSA
PDA version: A510FXXS3BPIA
CSC version: A510FDOJP3BPI1
CP version: A510FDXXS3BPI1
Phone SN: R58H90ZG4TA
Phone IMEI: 353761-08-011641-1
Reading codes…
Fast Read Codes method is not supported for current security settings
in your phone! Try to downgrade firmware!

Read codes failed
Performed by 2.4.0 Software version.