n950f u5 patch failed

Chimera Mobile Phone Utility version: 20.97.1243 @ 2019-05-08
Printing phone history

Rmm Unlock
2019-05-07
02:48:22
PM

Patch certificate started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-N950F
Sales Code: XEF
Country Code: France
Timezone: Africa/Johannesburg
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: N950FXXU5CRHA [august 2018, revA]
CSC Version: N950FOXM5CRHA [august 2018, revA]
Product Code: XEF
HIDSw Version: N950FXXU5CRHA/N950FOXM5CRHA/N950FXXU5CRHA/N950FXXU5CRHA
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: R58JA0S8VGF
Imei: 352055972538746
Unique Number: CE08171819122C5B0C7E
Connections: AT,MTP
Battery Status: 3.95V (68%)
Network Type: GSM
SIM Status: ABSENT
Multisim Config: SS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-09-01
Data Encryption State: unencrypted
Preparing...
Checking current patchcert.
Checking modem.
Checking root.
The knox is still valid. Because of the root, the warranty will void.
Checking custom root image...
This model is not available custom root image.
Unable to root. Retry or root manually. Click here to download rooting tools.
Finished at local time: [05.08.19 07:53:10]
WorkID: 59077326


but phone root ok with mgisk 17.2