VS501 frp remove Failed

VS501 frp remove Failed

LG VS501 (K20 V Verizon) at Auto Select Flash Port [LG FLASH 5] {Reset FRP}
DL MODE : 2
DL REQM : 5
DL MODEL: VS501
DL SWVER: VS50114B
DL IMEI : 355275-08-439672-9
LF MODEL: VS501
LF SERNO: VS501dc3b9693
LF SWVER: VS50114B_00
LF MINOS: MiniOS 3.0
LF OSVER: 7.0
LF IMEI : 355275-08-439672-9
LF DVPID: CT64S170912005277
LF SOCTY: msm8937
LF CABLE: 633A
LAF_ERASE Failed: -5
LAF_IOCT Failed: -3