LG LS990 cant write qcn please help [Solved]

[raselcox]

Phone is already rooted but unable to write qcn file. Below given operation log


Checking data...OK
Platform: LG Qualcomm
Selected port: COM62
Selected model: LS990
Reading info...
Initializing ADB...OK
Waiting for phone...OK
Model ID: LGLS990
Phone firmware version: LGLS990AT-00-ZV6-SPR-US-NOV-07-2014+00
Kernel version: 3.4.0-perf-gccc9cf3-00001-g59ce002
(lgmobile@LGEARND4B12) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Thu
Jun 19 19:28:43 KST 201
Android version: 4.4.2
Hardware: Qualcomm MSM8974PRO-AC ARMv7 Processor rev 1 (v7l)
Checking root access...
Phone is already rooted.
Performed by 2.7.2 Software version.
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM62
Selected model: LS990
Reading info...
Initializing ADB...OK
Waiting for phone...OK
Model ID: LGLS990
Phone firmware version: LGLS990AT-00-ZV6-SPR-US-NOV-07-2014+00
Kernel version: 3.4.0-perf-gccc9cf3-00001-g59ce002
(lgmobile@LGEARND4B12) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Thu
Jun 19 19:28:43 KST 201
Android version: 4.4.2
Hardware: Qualcomm MSM8974PRO-AC ARMv7 Processor rev 1 (v7l)
Please, type ##3424# to get SPC / MSL / Service Code...OK
Input 000001, go to "Diag" menu and select "Enable" option.
Performed by 2.7.2 Software version.

Its always stop there. How to solve this problem? Need help asap.

Thanks in advance.
Br,
Rasel