[asadnow2k]

LG 2-3G Tool v9.14
supported models: 1230

Reading timeout, check cable
Error Code: ReadInfo,1,1
Elapsed: 2 secs. --> (v9.14)

Reading timeout, check cable
Error Code: ReadInfo,1,1
Elapsed: 2 secs. --> (v9.14)

Reading timeout, check cable
Error Code: ReadInfo,1,1
Elapsed: 2 secs. --> (v9.14)

Reading timeout, check cable
Error Code: ReadInfo,1,1
Elapsed: 2 secs. --> (v9.14)

Check adb server status...
Try kill add server... ERROR
Found 1 device(s)
Device name: LGD850
Firmware version:
Android release: 4.4.2
Platform: msm8974
Start root...
Send exploit: OK!
Install exploit: OK!
Root status: ERROR!su

/system/bin/sh: su: not found
127|shell@g3:/ $
Elapsed: 24 secs. --> (v9.14)

Reset Security Zone
Check adb server status... OK
Found 1 device(s)
Device name: LGD850
Firmware version:
Android release: 4.4.2
Platform: msm8974
Root status: Phone not rooted! Root phone manual!
Elapsed: 3 secs. --> (v9.14)

Reset Security Zone
Check adb server status...
Try kill add server... ERROR
Found 1 device(s)
Device name: LGD850
Firmware version:
Android release: 4.4.2
Platform: msm8974
Root status: OK!

Scaning security area by HUMMER algo...
Making security area diagram:
--------------------++-
--------------------++-
Backup security zone...
Sec zone saved: ..\Backup\__19052016_203235.lgsb1
Writing security zone...
Reboot phone
Done!
Elapsed: 29 secs. --> (v9.14)

Reading QCN file... OK
Checking phone at COM14
Detected ID: 00000FF3 (MSM8974)
SW Version: MPSS.DI.2.0.1.c1.13-00009-M8974AAAAANPZM-1
Unlock SPC... OK
Checking paths... OK
Restoring EFS Backup... OK
Restoring NV Items... OK
Restoring NV Item SIM1... OK
Restoring NV Item SIM2... OK
Restoring Provisioning Item Files... OK
Elapsed: 24 secs. --> (v9.14)

Repair IMEI 0...
Write IMEI 1 OK
Done!
Elapsed: 15 secs. --> (v9.14)

and it worked for me thanks