Samsung SM-N920W8 Failing to Unlock

My SM-N920W8 is failing to unlock after using the test version here:


Originally Posted by Octopus box (Post 11558926)
Please repeat "Read Codes" operation with this test Software version

If problem will persist – please upload first Security backup of the phone, *.log and *.logx files of performed operations to any file sharing service and post here download link. We will check what causes the problem.

In addition, the latest version (2.1.9) is failing as well. I have attempted multiple times (10+) on both versions and they are continuing to fail.

Here are the security backups throughout tests:

Here are the logs:

Platform: Samsung Android
Selected port: COM3
Selected model: SM-N920W8
Detected phone model: SM-N920W8
Firmware compiled date: Thu Nov 19 20:24:59 KST 2015
PDA version: N920W8VLU2AOK5
CSC version: N920W8OYA2AOK5
SW version: N920W8VLU2AOK5
Phone SN: RF8G728YPXW
Android version: 5.1.1 (LMY47X)
Checking Root:
Phone is Rooted.
Reading security backup, please wait…
Backup saved as
Deactivating MSL…
Executing exploit…
Executing exploit failed
Read codes failed