lg h820 unlock error please help

LG 2-3G Tool v9.48
supported models: 1555

Mode: Normal
Model: LGH820AT
Build version: Sep 13 201609:53:44Jul 10 201619:00:00LGH820AT
SW Version: MPSS.TH.2.0.c1.4-00032-M8996FAAAANAZM-1.63052.1
IMEI: BAD IMEI
BlueTooth Address: 69:2F:76:6E:2F:00
Phone Code: default
Elapsed: 1 secs. --> (v9.48)

Checking phone at COM226
Detected ID: 00001010 (MSM8996)
SW Version: MPSS.TH.2.0.c1.4-00032-M8996FAAAANAZM-1.63052.1
Reading ESN... OK
Read SPC...
SPC: 000000
Unlock SPC... OK
Backuping RFNV... OK
Backuping Feature Mask... OK
Backuping NV Item... OK
Backuping NV Item SIM1... OK
Backuping NV Item SIM2... OK
Backuping Provisioning Item Files... OK
Phone mode is NORMAL
Switch to DOWNLOAD mode
Phone detected!
Read security zone...
Laf Protocol: 01000004
Model name: LG-H820
Software verion: H82011n
Android verion: 6.0.1
Target operator: ATT
Target country: US
Chipset: msm8996
IMEI: 000000000000000
Save part1... done
Save part2... done
Save part3... done
Sec zone saved: ..\Backup\H820_BAD_14052018_195903.lgsb1
Write security zone...
Erase part1... done
Erase part2... done
Erase part3... done
Reboot...
Phone detected!
Reading QCN file... OK
Checking phone at COM226
Detected ID: 00001010 (MSM8996)
SW Version: MPSS.TH.2.0.c1.4-00032-M8996FAAAANAZM-1.63052.1
Read SPC...
SPC: 000000
Unlock SPC... OK
Checking paths... OK
Restoring EFS Backup... OK
Restoring NV Items... OK
Restoring NV Item SIM1... OK
Restoring NV Item SIM2... OK
Restoring Provisioning Item Files... OK
Unlock done!
Elapsed: 610 secs. --> (v9.48)

but still locked

imei become 0-11
and fix imei 0

but still locked to
please help