LS980 Download mode…Failed !

Platform: LG Qualcomm
Selected port: COM47
Selected model: LS980
Please, put the phone into download mode manually (Power phone OFF,
press and hold "Vol+" button and connect the cable).
Reading info…
Mode: Normal
Firmware compiled date:
Firmware compiled time:
Firmware released date:
Firmware released time:
SW Version:
Switching to Download mode…Failed !
Please perform the following steps:
1. Disconnect cable
2. Put phone into download mode manually (Power phone OFF, press and
hold "Vol+" button and connect the cable)
3. Connect cable and press "Ok" button.
Failed!