Unlock sm-g925f

hi! i’m trying to unlock the sm-g295f, but the software stop here :

Platform: Samsung Android
Selected port: COM3
Selected model: SM-G925F
Detected phone model: SM-G925F
Firmware compiled date: Fri Sep 25 16:06:47 KST 2015
PDA version: G925FXXU3COI9
CSC version: G925FITV3COI6
SW version: G925FXXU3COI9
Phone SN: RF8G50B5B9T
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as C:\Program Files (x86)\Octoplus\Octoplus_Samsung\BACKUP\Security-SM-G925F-Unknown19-01-2016_12-05-49-.asec file
Deactivating MSL…
Executing exploit…
Exploit has been executed successfully

and no more, the phone have no changes, the same with the write cert, can you help me? i have the latest version of software