Before trying to unlock MikroTik devices SNMP and SSH should be enabled.
How to Enable SNMP from MikroTik cmdline:
[admin@MikroTik] > snmp
[admin@MikroTik] /snmp> set enabled yes
How to Enable MikroTik SSH:
The SSH service should be enabled by default on the RouterOS.
In case it is disabled you can enable it by issuing the following commands:
/ip service enable ssh
User Grants on Router OS:
requires a user that is able to execute the following command through SSH:
/export verbose
Connecting with a user belonging to a group with read only and ssh policies is sufficient to retrieve most of the configuration settings.
For example:
/user group add name=config-readers policy=read,ssh