Cần giúp unlock ls997 báo lỗi

Checking data...OK
Platform: LG Qualcomm
Selected port: COM73
Selected model: LS997
Reading info...
IMEI: 359969-07-051489-1
Android version: 7.0
Battery level: 46%
SW Version: LS997ZVB
Mode: Emergency
Initializing flash...OK
SW version: LS997ZVB_02
Android version: 7.0
LAF Version: 1.1
Product ID: PT01S161021001000
IMEI: 359969-07-051489-1
Target operator: SPR
Hardware: rev_10
Unlock operation is currently not supported for your phone's firmware.
Reading partitions...OK
Reading Carrier...OK
Unlocking...OK
Writing Carrier...
LAF Error: 80000121.
Trying second method...Failed!
LAF Error: 0F0F0F0F.
Unlock operation is currently not supported for your phone's firmware.
Error code: ZXLCALSZXC
Performed by 2.8.8 Software version.

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Mã:

SW Version: LS997ZVB
Mode: Emergency
Initializing flash...OK
SW version: LS997ZVB_02

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