sm-n95-f error

Chimera Mobile Phone Utility version: 20.22.0558 @ 2019-02-13
Printing phone history

Patch Certificate
2/13/2019
12:03:10
PM

Patch Certificate
2/13/2019
12:00:41
PM

Reboot
2/13/2019
11:54:16
AM

Reboot
2/13/2019
11:52:32
AM

Patch Certificate
2/13/2019
11:46:47
AM

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-N950F
Sales Code: INS
Country Code: India
Timezone: Asia/Kolkata
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Fri Aug 31 16:45:03 KST 2018
PDA Version: N950FXXU5CRHA [august 2018, revA]
Phone Version: N950FXXU5ARI1 [september 2018, rev1]
CSC Version: N950FOXM5CRHA [august 2018, revA]
Product Code: INS
HIDSw Version: N950FXXU5CRHA/N950FOXM5CRHA/N950FXXU5ARI1/N950FXXU5CRHA
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: RZ8K10AB0TF
Imei: 354202071573517
Unique Number: CE10171ABB90BB12047E
Connections: AT,MTP
Battery Status: 3.73V (34%)
Network Type: GSM
SIM Status: ABSENT,ABSENT
Multisim Config: DSDS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-09-01
Data Encryption State: unencrypted
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
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.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data. Be patient! Do NOT disconnect the phone!
Unable to patch certificate.
Finished at local time: [02.13.19 17:56:21]
:confused: