rmm unlock for g570m failed.

Chimera Mobile Phone Utility version: 20.97.1243 @ 2019-04-30
Printing phone history

Rmm Unlock
30/04/2019
03:24:33
p.m.

Repair IMEI
29/04/2019
06:18:14
p.m.

Repair IMEI
29/04/2019
06:15:42
p.m.

SW Change
29/04/2019
06:04:30
p.m.

Repair IMEI
29/04/2019
06:02:45
p.m.

RMM Unlock started
Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-G570M
Sales Code: TTT
Country Code: TRINIDAD AND TOBAGO
Timezone: America/Bogota
Android Version: 8.0.0 [R16NW] [SDK 26]
Build Date: Thu Sep 27 22:59:08 KST 2018
PDA Version: G570MUBU3CRI3 [september 2018, rev3]
Phone Version: G570MUBU3CRH8 [august 2018, rev8]
CSC Version: G570MUUB3CRI3 [september 2018, rev3]
Product Code: TTT
HIDSw Version: G570MUBU3CRI3/G570MUUB3CRI3/G570MUBU3CRH8/G570MUBU3CRI3
Board Platform: EXYNOS5
Modem Platform: SHANNON305
Serial Number: R28J21ACGQB
Imei: 353xxxxxxxxxxx
Unique Number: CQ300E7F8C6D014
Connections: AT,MTP
Battery Status: 4.16V (90%)
Network Type: GSM
SIM Status: ABSENT
Multisim Config: SS
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-10-01
Data Encryption State: encrypted
Unlocking RMM...
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: [04.30.19 10:28:30]
WorkID: 583XXXX

How should this process be done?

thanks