right here is a step by step of what im doing. (teamview is now installed also)
1) reset efs (log below)
Using Version...1.0.0.0026
Selected Model SM-G920F
Selected Task SAMSUNG RESET-EFS
Searching ADB device Please wait..
Device Detected...
Security:= OFF Unsecure device
model:= SM-G920F
Androids Version:= 5.1.1
Description Version:= zerofltexx-user 5.1.1 LMY47X G920FXXU3QOK6 release-keys
Platform:= exynos5 [ samsungexynos7420 ] [ unknown ]
Baseband:= G920FXXU3QOJK
VER:= G920FXXU3QOK6/G920FCAM3QOK1/G920FXXU3QOJK/FA50_G920FXXU3AOK3
Carrier := CAM_Cambodia
Network Mode := 9
Simstatus:= ABSENT
BusyBox version := 1.23.2
IMEI-1 = null or empty
ANDROID-ID = 02157df288d4951b_00008A9E1E
Detected su binary at /xbin
SU Version..2.49:SUPERSU
Device is Secure Rooted..uid=0
System Permission is Read/Write...
SAMSUNG RESET-EFS STARTED...
Reading Backup..
Using Exynos base data..
EFS Backup Ok...
backup fail...backup fail...
backup fail...
backup fail...
Make Factory Restore Tar := notused..
Backup Reading Done..1
Reseting EFS/Fixing Null IMEI...Done..
Rebuilding EFS..Done..
Restarting Phone...
!!! Success !!!!
Restart Phone Manually before doing anything...
Total Time Take...00:02:01
Log Saved
2) imeicert write_usb (log below)
Using Version...1.0.0.0026
Selected Port ssudmdm0000 = COM4
Selected Model SM-G920F
Selected Task SAM CERT WRITE
ALL SAMSUNG CERT WRITE STARTED..
Searching Phone Please wait...
Phone Found Wait...
TEST MODE OK..
Model := G920F
VER := G920FXXU3QPhone IMEI := 00000000000000
Default MSL NO NEED RESET EFS...
MSL Autho Pass..
Update IMEI Ok..
SKEY := 0346
EXYNOS Type Detected..
Checking imeicert...
IMEI-1 CERT PASS..
Fixing FTM ok..
Repairing finish.
!!! SUCCESS !!!!
Total Time Take...00:03:26
Log Saved
3) enable uart
4) drk repair. (log below)
Using Version...1.0.0.0026
Selected Port VCP1 = COM5
Selected Model SM-G920F
Selected Task SAMSUNG DRK FIX
Started Samsung DRK Fix...
Phone Found Please Wait...
Details. SM-G920F,N,G920FXXU3QOK6,G920FXXU3QOK6,G920FXXU3QOJK, N,
Model := SM-G920F
UNIQID := 02157DF288D4951
Phone IMEI := 35755806276248
Phone MEID := null/empty
Default MSL NO NEED RESET EFS...
ROOTKEY FAIL..M7SMN3SNNzKON3ZDkEau8aYW8Sbm8abOIGRiGG9iGm9q Fm9qHm8METeKN7QEAA==
!!! Fail !!!!
Total Time Take...00:00:39
Log Saved
this is my 3rd day trying to fix this phone
