Lg ls755 6.0.1 reset frp error

Start flashing.
Start reset FRP...
Laf cmd info: send LAF_CMD_HELLO, retry #1
Laf Protocol: 01000004
Model name: LGLS755
Software verion: LS755ZVC
Android verion: 6.0.1
Target operator: SPR
Target country: US
Chipset: mt6755
IMEI1: 358756073078771
IMEI2: 350305260000001
Init EXT4 ...
Laf cmd info: send LAF_CMD_IOCTL, retry #1
Laf cmd info: send LAF_CMD_IOCTL, retry #2
Laf cmd info: send LAF_CMD_IOCTL, retry #3
Laf cmd error: LAF_CMD_IOCTL could not write.
Reset error.
Elapsed: 115 secs. --> (v9.45)