E960 Nexus 4 IMEI Repair FAIL

Checking data…OK
Platform: LG Qualcomm
Selected port: COM3
Selected model: E960
Searching Diagnostic Ports…OK
Reading info…
Initializing ADB…OK
Waiting for phone…OK
Model ID: Nexus 4
Firmware version:
Kernel version: 3.4.0-perf-gf43c3d9 (android-build@vpbs1.mtv.corp.google.com) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT Mon Jun 17 16:55:05 PDT 201
Android version: 4.3
Hardware: QCT APQ8064 MAKO ARMv7 Processor rev 2 (v7l)
Trying to enable Diagnostics ports…
Checking root access…
Phone is already rooted.
Diagnostics ports are enbled!
Switching to Serial Port…
Found model ACEFWMAZ: ÿd at port COM123
Searching Diagnostic Ports…OK
Reading info…
Mode: Normal
Firmware compiled date: May 08 2013
Firmware compiled time: 01:00:00
Firmware released date: Jun 17 2013
Firmware released time: 14:16:29
SW Version: M9615A-CEFWMAZM-2.0.1700.84
IMEI: 355136-05-005630-1
SPC: 000000
Fixing IMEI…
New IMEI: 356136-05-005630-0
Switching to Serial Port…Failed!
Performed by 2.3.4 software version.