another x210apm unlock failed

Mode: Normal
Model: LMX210AP
Build version: Jan 29 201920:52:45Jun 20 201806:00:00LMX210AP
SW Version: MPSS.JO.3.0.c12-00013-8937_GENNS_PACK-1
IMEI: 35393409577828-1
IMEI2: 00000000000000-0
BlueTooth Address: 00:00:01:02:26:00
Phone Code:
Elapsed: 1 secs. --> (v9.61)

Checking Login and Password... OK
Ballance: 10 crd.
You have 10 credit(s) left. This operation takes 5 credits.Continue? Yes
Check adb server status...
Try kill add server... ERROR
Checking phone at COM427
Detected ID: 0000100C (MSM8909)
SW Version: MPSS.JO.3.0.c12-00013-8937_GENNS_PACK-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: 00000001
Model name: LM-X210APM
Software verion: X210APM10m
Android verion: 7.1.2
Target operator: ATT
Target country: US
Chipset: msm8937
IMEI: 353934095778281
Save part1... done
Save part2... done
Save part3... done
Sec zone saved: ..\Backup\X210APM_353934095778281_06062019_162835. lgsb1
Detecting write method...
Init write method... fail
Init misc method... fail
Init sign method...
Execute sign method... done
Checking sign method...
Laf flash error: [sign] incorrect data fail
Laf flash error: phone is not supported.
Elapsed: 546 secs. --> (v9.61)