s6 repair IMEI not working MSL FAILED

canning 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: G920W8VLU3BOJ7
Model: SM-G920W8
Brand: samsung
Device: zerofltebmc
Platform: exynos5
Language: en
Rigion: CA

Device Info
SerialNumber: 05157df58d2
Hardware: samsungexynos7420
Model: zerofltebmc
PDA Version: G920W8VLU3BOJ7
Phone Version: G920W8VLU3BOJ7
Bootloader ver: G920W8VLU3BOJ7
Ril HW ID:
Sales Code: BMC
Model ID: UNKNOWN
Get Bluetooth info failed
WiFi MAC: ec:1f:72:19:af:af
WiFi interface:
WiFi state: COMPLETED
Root Access: ROOTED

Time used : 2.3 s

Connect to device …
Device Authentication … failed with MSL
Connect to device …
Device Authentication … failed with MSL

Whats the solution?

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