SM-J530F read cert fail

Unlock4samsung Wednesday, May 15, 2019

Chimera Mobile Phone Utility version: 21.12.1051 @ 2019-05-15
Printing phone history

Read Cert
5/14/2019
9:23:56
AM

Repair IMEI
5/14/2019
8:10:34
AM

Read Cert
5/14/2019
8:09:33
AM

Read Cert
5/14/2019
8:07:37
AM

Read Cert
5/14/2019
7:59:37
AM

Read certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-J530F
Sales Code: XEO
Country Code: Poland
Timezone: Asia/Dhaka
Android Version: 8.1.0 [M1AJQ] [SDK 27]
Build Date: Thu Mar 14 18:57:31 KST 2019
PDA Version: J530FXXU4BSC2 [march 2019, rev2]
Phone Version: J530FXXU4BSC2 [march 2019, rev2]
CSC Version: J530FOXA4BSC2 [march 2019, rev2]
Product Code: XEO
HIDSw Version: J530FXXU4BSC2/J530FOXA4BSC2/J530FXXU4BSC2/J530FXXU4BSC2
Board Platform: EXYNOS5
Modem Platform: SHANNON315
Serial Number: RF8K20AZ1LP
Imei: xxxxxxxxxxxxxxxx
Unique Number: CAJ0094595A79C4
Connections: AT,MTP
Battery Status: 4.21V (100%)
Network Type: GSM
SIM Status: ABSENT
Multisim Config: SS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2019-03-01
Data Encryption State: encrypted
Reading cert...
Checking modem version.
This modem is not appropriate (J530FXXU4BSC2), because of warranty void (knox is 1). Please downgrade if possible!
Finished at local time: [05.15.19 14:41:11]
WorkID: 59698467

Have any way to downgrade this phone?

wbr
Dilip