LG Nexus 5X H790 FRP set FAILED.. Please help

I need some help with FRP reset. thanks..
LG version 2.1.9

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Checking data…OK
Platform: LG Qualcomm
Selected port: COM19
Selected model: H790
Reading info…
Model ID: LGH790
IMEI: 353626-07-235190-6
Android version:
Battery level: 84%
Mode: Emergency
Initializing flash…OK
SW version: LGH790AT-00-V10f-NXS-XXX-OCT-03-2015-32G-MDA89E-US
LAF Version: 1.2
Product ID: BS04S150924002742
IMEI: 353626-07-235190-6
Target operator: GOOGLE
Hardware:
Resetting Screen Lock…OK
Reading partition…OK
Resetting FRP Lock…Failed!
Performed by 2.1.9 software version.