J730FM Android 8.1.0 U4 Write Cert fail!

Chimera Mobile Phone Utility version: 20.31.1427 @ 2019-02-24
Printing phone history
Repair IMEI 2/24/2019 6:53:52 PM
Write certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-J730FM
Sales Code: SER
Country Code: Russia
Timezone: Asia/Baku
Android Version: 8.1.0 [M1AJQ] [SDK 27]
Build Date: Thu Sep 6 19:03:58 KST 2018
PDA Version: J730FMXXU4BRI3 [september 2018, rev3]
Phone Version: J730FMXXU4BRI3 [september 2018, rev3]
CSC Version: J730FMOXY4BRI3 [september 2018, rev3]
Product Code: SER
HIDSw Version: J730FMXXU4BRI3/J730FMOXY4BRI3/J730FMXXU4BRI3/J730FMXXU4BRI3
Board Platform: EXYNOS5
Modem Platform: SHANNON315
Serial Number: R58K85PZRKW
Imei: 356391083098692
Unique Number: CAJ0023F2EADF75
Connections: AT,MTP
Battery Status: 4.19V (88%)
Network Type: GSM
SIM Status: ABSENT,ABSENT
Multisim Config: DSDS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-08-01
Data Encryption State: unencrypted
Writing cert...
Checking modem version.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data. Be patient! Do NOT disconnect the phone!
Write cert failed.
Finished at local time: [02.24.19 23:53:17]
WorkID: 53378906