j700t t mobile locked-can not root-so can not unlock

info as below

Model: SM-J700T
Sales Code: TMB
Country Code: USA
Timezone: Asia/Kolkata
Android Version: 7.1.1 [NMF26X] [SDK 25]
Build Date: Tue Nov 7 18:15:26 KST 2017
PDA Version: J700TUVU3BQK3 [november 2017, rev3]
Phone Version: J700TUVU3BQK3 [november 2017, rev3]
CSC Version: J700TTMB3BQK3 [november 2017, rev3]
Product Code: TMB
HIDSw Version: J700TUVU3BQK3/J700TTMB3BQK3/J700TUVU3BQK3/J700TUVU3BQK3
Board Platform: EXYNOS5
Modem Platform: SHANNON310
Serial Number: R58H91JBTVN
Imei: 357218077326913
Unique Number: C00008937C0F253
Connections: AT,MTP
Battery Status: 4.14V (87%)
Network Type: GSM
SIM Status: ABSENT
Multisim Config: SS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2017-08-01
Data Encryption State: unencrypted

tried below root file

CF-Auto-Root-j7eltetmo-j7eltetmo-smj700t

can not---help me