Need Help !! Unlock not done for LG LS751

Checking data…OK
Platform: LG Qualcomm
Selected port: COM4
Selected model: LS751
Reading info…
Initializing ADB…OK
Waiting for phone…OK
Model ID: LGLS751
Firmware version: LGLS751AT-00-ZV5-SPR-US-NOV-18-2015+05
Kernel version: 3.10.49-g449bb95-00003-g7264a8f (lgmobile@LGEACI6R2) (gcc version 4.8 (GCC) ) #1 SMP PREEMPT Wed Nov 18 21:05:43 KST 201
Android version: 5.1.1
Hardware: Qualcomm Technologies, Inc MSM8916 0
Please, type ##3424# to get SPC / MSL / Service Code…OK
Input 040210, go to "Diag" menu and select "Enable" option.
Performed by 2.3.5 software version.