LG-H818P Resetting FRP Lock…Failed!

Checking data…OK
Platform: LG Qualcomm
Selected port: COM111
Selected model: H818P
Please, put the phone into download mode manually (Power phone OFF,
press and hold "Vol+" button and connect the cable (or P990 cable)).
Reading info…
Model ID: LG-H818P
IMEI: 359492-06-771557-9
Android version: 6.0
Battery level: 25%
Mode: Normal
Switching to Download mode…OK
Initializing flash…OK
Reading partitions…OK
Resetting FRP Lock…Failed!
Resetting screen lock successfully completed!
Performed by 2.3.0 software version.