LG P760 Security Error Cant Solve

LG P760 while powered on it stuck at Security Error….
I tried to flash and repair it with OMAP method..bt cant flash…
I have LG Optimus Cable too…I set it at 910K …but it not made any change compare to try with normal USB cable
Pic of mobile with eror is:Attachment 345867
Logs of tried to flash with Octopus are following :-
OMAP Repair Method logs –
Connecting…OK
Sending preloader…OK
Sending loader…OK
Opening "LGP760AT-00-V10a-208-15-OCT-31-2012+0_AP.oct"…OK
Initializing device…Failed!
Port busy

Flashing with OMAP method (By holding Pwer UP key to ennter in SW Upgrade mode )
Platform: LG Infineon
Connection mode: OMAP
Selected model: P760
Opening "LGP760AT-00-V10a-208-15-OCT-31-2012+0_AP.oct"…OK
Please, disconnect cable, reconnect battery, connect P999 cable (with 910k resistor)
Initializing device…OK
Writing Firmware…
Connecting to modem CPU…OK
Sending preloader…OK
Sending loader…

Attached Images
File Type: jpg 20160211_091313.jpg (449.8 KB)