s8 g950f Knox Guard Unlock Failed

Chimera Mobile Phone Utility version: 22.02.1024 @ 2019-08-18

Knox Guard Unlock started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G950F
Sales Code: XFA
Country Code: SOUTHERN AFRICA
Timezone: Africa/Johannesburg
Android Version: 9 [PPR1.180610.011] [SDK 28]
Build Date: Wed Jun 26 16:26:51 KST 2019
PDA Version: G950FXXU5DSFB [june 2019, revB]
Phone Version: G950FXXU5ASF1 [june 2019, rev1]
CSC Version: G950FOXM5DSFB [june 2019, revB]
Product Code: XFE
HIDSw Version: G950FXXU5DSFB/G950FOXM5DSFB/G950FXXU5ASF1/G950FXXU5DSFB
Board Platform: EXYNOS5
Modem Platform: SHANNON355
Serial Number: R28J43RJ3CV
Imei: 358957081022823
Unique Number: CE0417145CE9DCA50D
Connections: AT,MTP
Battery Status: 4.00V (74%)
Network Type: GSM
SIM Status: ABSENT
Multisim Config: SS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2019-07-01
Data Encryption State: encrypted
Unlocking KnoxGuard...
The operation is in progress. Be patient! Do NOT disconnect the phone!
It seems, this unlock method is not supported by the phone.
Unlock failed.
Finished at local time: [08.18.19 21:44:26]
WorkID: 70175677