j320a 7.1.1 unlock error

Operation: Read Codes DIAG
Selected model: SM-J320A
Software version: 33.2

Checking hash file... OK
Searching Samsung modem... detected COM113
Reading phone info...
Model: SM-J320A
AP version: J320AUCS3BQL2
CSC version: J320AATT3BQL2
CP version: J320AUCS3BQL2
Product code: ATT
Phone SN: R28HB1LBP2Y
IMEI: 355022074518z
Unique number: CQ300F0EAC0B5A3
Searching Samsung diag port... detected COM114
Reading phone info... OK
CP version: J320AUCS3BQL2
CP build: Dec 12 2017 14:01:51
Reading data from phone... OK
Reading NV data... OK
Modem board: SHANNON308
Checking NV data... OK
Calculating... error
Security damaged (hmac mismatch)
Done with Samsung Tool PRO v.33.2