j710mn Does not disable knox

Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-J710MN
Sales Code: ZTO
Country Code: Brazil
Timezone: America/Noronha
Android Version: 8.1.0 [M1AJQ] [SDK 27]
Build Date: Wed Jan 30 22:23:15 KST 2019
PDA Version: J710MNVJU4CSA2 [january 2019, rev2]
Phone Version: J710MNUBU4CRL2 [december 2018, rev2]
CSC Version: J710MNZTO4CRK1 [november 2018, rev1]
Product Code: ZTO
HIDSw Version: J710MNVJU4CSA2/J710MNZTO4CRK1/J710MNUBU4CRL2/J710MNVJU4CSA2
Board Platform: EXYNOS5
Modem Platform: SHANNON315
Serial Number: RQ8J507DD3V
Imei: 352532353253236
Unique Number: CAJ03EE83C0D434
Connections: AT,MTP
Battery Status: 4.14V (72%)
Network Type: GSM
SIM Status: ABSENT,ABSENT
Multisim Config: DSDS
Knox Version: v30
Warranty Bit: 1
Security Patch: 2019-01-01
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: [04.25.19 18:38:05]
WorkID: 58026175