sm-a510f help please

i try to read codes but i have new security please some help how to unlock this phone here is log


[Read codes started]

Gathering phone info...
Collecting information. Be patient! Do NOT disconnect the phone!
Model: SM-A510F
Sales Code: MBM
Country Code: MACEDONIA
Timezone: Europe/Skopje
Android Version: 7.0 [NRD90M]
Build Date: Wed Jan 31 12:25:51 KST 2018
PDA Version: A510FXXU5CRB1 [february 2018, rev1]
Phone Version: A510FXXU5CRA3 [january 2018, rev3]
CSC Version: A510FMBM5CRB1 [february 2018, rev1]
Product Code: MBM
HIDSw Version: A510FXXU5CRB1/A510FMBM5CRB1/A510FXXU5CRA3/A510FXXU5CRB1
Board Platform: EXYNOS5
Modem Platform: SHANNON310
Serial Number: RF8HA0JL69J
Imei: 354361081124131
Unique Number: C0000C3DDC84F73
Connections: AT,MTP
Battery Status: 3.77V (38%)
Network Type: GSM
SIM Status: ABSENT
Knox Version: v30
Warranty Bit: 0
Security Patch: 2018-02-01
Data Encryption State: unencrypted

Reading Codes...
Searching serial port. Be patient! Do NOT disconnect the phone!
Serial port found on COM281
Reading data. Be patient! Do NOT disconnect the phone!
Inappropriate modem version.
Try using an older modem. WARNING! You only have to flash the modem.bin from the firmware!
Read codes failed.
Finished at local time: [03.15.18 18:53:16]
WorkID: 34846728