Samsung Tool Pro is not working to unlock samsung galaxy s9 sm-g965u.tried multiple t

Samsung Tool Pro is not working to unlock samsung galaxy
s9 sm-g965u.tried multiple times and keep getting same error.

Operation: Unlock
Selected model: SM-G965U
Software version: 34.8

Checking Login and Password... OK
Ballance: 15 crd.
You have 15 credit(s) left. This operation takes 8 credits.Continue?
Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G965U
Android version: 8.0.0
PDA version: G965USQU3BRK1
CSC version: G965UOYN3BRK1
Phone version: G965USQU3BRK1
Product code: SM-G965UZKASPR
CSC country code: USA
CSC sales code: SPR
Phone SN: RF8K3189MYL
IMEI: 356420092829720
HW version: REV1.1
RF cal date: 2018.03.10
Chip name: SDM845
Modem board: SDM845
Security patch: 2018-11-01
Boot Warranty bit: 0
SIM State: CARD_IO_ERROR
Searching Samsung diag port... detected COM19
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Checking data... error (4.0)
Your phone has new security patch

Done with Samsung Tool PRO v.34.8


Please fix Thanks.