G890A Patch Cert

Hello I am trying to find out what it means when you get the following log

Using Version…1.0.0.0025
Selected Model SM-G890A
Selected Task SAMSUNG PATCH CERT

Searching ADB device Please wait..

Device Detected…
model:= SAMSUNG-SM-G890A
Androids Version:= 5.0.2
Description Version:= marinelteuc-user 5.0.2 LRX22G G890AUCU2AOF4 release-keys
Platform:= exynos5 [ samsungexynos7420 ] [ unknown ]
Baseband:= G890AUCU2AOF4
VER:= G890AUCU2AOF4/G890AATT2AOF4/G890AUCU2AOF4/G890AUCU2AOF4
Carrier := ATT_USA
Network Mode := 0
Simstatus:= ABSENT
IMEI-1 = null or empty
ANDROID-ID = 05157df5eafa3419_00007844DF
Device is not rooted

SAMSUNG PATCH CERT STARTED…

Exynos Not Ready yet…

Restarted phone…
Total Time Take…00:00:05
Log Saved

it succesfully repaired the imei but I dont know how to check if the DRK is good since I reset efs what are the at commands to check if DRK is broke