Device Authentication ... failed with MSL Time used : 8.8 s

[m&s]

Fw.Ver : BstKey V3.29
Serial : xxxxxxxxxxxxxxxxxxxxxxxxx
Active User: scott-derek
PL2303 : 3.4.48.272 2013-02-05 (OK)
Best Smart Tools, Load OK.

Scanning devices ... 0 found

Scanning devices ... 1 found
dev[1]
Manufactory:
Model:
Hardware:
Mode: Need Read Info
Device Info (UART) ... failed
Time used : 0.2 s


Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G920W8
Hardware: SAMSUNGEXYNOS7420
Mode: normal
-----------------------------------------------------
Download: Press Vol Dn + Home + Power

UART Cable Resistor: 523 K
ReadCodes/Unlock/Repair:
Cables: MicroUART
Interface: Auto, Change UART when request

Read Info/Flashing/UserLock/Backup:
Cables: MicroUSB
Interface: Auto

Checking environment ...
System Info
Display ID: LMY47X
System Ver: 5.1.1 REL
API Level: 22
Incremental: G920W8VLU3BOK1
Model: SM-G920W8
Brand: samsung
Device: zerofltebmc
Platform: exynos5
Language: en
Rigion: CA

Device Info
SerialNumber: 04157df43c4a2409
Hardware: samsungexynos7420
Model: zerofltebmc
PDA Version: G920W8VLU3BOK1
Phone Version: G920W8VLU3BOJ7
Bootloader ver: G920W8VLU3BOK1
Ril HW ID:
Sales Code: GLW
Model ID: UNKNOWN
Get Bluetooth info failed
WiFi MAC: e8:50:8b:8b:ac:5b
WiFi interface:
WiFi state: SCANNING
Root Access: ROOTED

Time used : 3.0 s

Device Authentication ... failed with MSL
Time used : 11.9 s

Device Authentication ... failed with MSL
Time used : 8.8 s