Samsung S8 G950U SPR new security Patch need solution

Operation: Unlock
Selected model: SM-G950U
Selected port: COM4 Z3X BOX Serial Port
Software version: 37.0

Checking Login and Password... OK
Ballance: 14 crd.
You have 14 credit(s) left. This operation takes 8 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G950U
Android version: 9
PDA version: G950USQU5DSD3
CSC version: G950UOYN5DSD3
Phone version: G950USQU5DSD3
Product code: SM-G950UZKABST
CSC country code: USA
CSC sales code: BST
Phone SN: RF8K70KJH1R
IMEI: 358481090507245
HW version: REV1.0
RF cal date: 2018.07.06
Chip name: MSM8998
Modem board: MSM8998
Security patch: 2019-04-01
Boot Warranty bit: 0
SIM State: LOADED
Searching Samsung diag port... detected COM1057
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.37.0