samsung j530f patch network error

Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-J530F
Sales Code: XEO
Country Code: Poland
Timezone: Africa/Lagos
Android Version: 9 [PPR1.180610.011] [SDK 28]
Build Date: Thu Aug 22 18:33:24 KST 2019
PDA Version: J530FXXU5CSH7 [august 2019, rev7]
Phone Version: J530FXXU5CSH5 [august 2019, rev5]
CSC Version: J530FOXA5CSH6 [august 2019, rev6]
Product Code: XEO
HIDSw Version: J530FXXU5CSH7/J530FOXA5CSH6/J530FXXU5CSH5/J530FXXU5CSH7
Board Platform: EXYNOS5
Modem Platform: SHANNON315
Serial Number: RF8K1001FEA
Imei: 355232445311673
Unique Number: CAJ00D0EB5A18C4
Connections: AT,MTP
Battery Status: 3.88V (38%)
Network Type: GSM
SIM Status: ABSENT,ABSENT
Multisim Config: DSDS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2019-08-01
Data Encryption State: encrypted
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
The phone is rooted by: 19.3:MAGISKSU
Checking boot image. Be patient! Do NOT disconnect the phone!
The knox is still valid. Because of the boot patch the warranty will void.
Writing boot image.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data...
Checking modem version.
This modem is not appropriate (J530FXXU5CSH5). Please downgrade if possible!
Unsupported modem version.
Finished at local time: [10.07.19 14:39:31]
WorkID: 75442270

please can the modem be downgraded?