...

• Connect with your computer to the device;
• Download the configuration tool https://mt.lv/winbox;
• Open the Neighbors tab and connect to the device using MAC address, 192.168.88.1 is available on ether15 ether1 using a web browser;
• The user name: admin, by default there is no password (or, for some models, check user and wireless passwords on the sticker).;
• To update the device to the latest software version download the latest RouterOS software from https://mikrotik.com/download;
• Choose ARM64 packages, and save them to your computer;
• Return to the WinBox and upload downloaded packages;
• Restart the device.

...

Configuration

The Ethernet port 15 1 has a default IP address for connecting: 192.168.88.1. The username is admin and there is no password. The device doesn't have any other configuration applied by default, please set up WAN IP addresses, user passwords, and update the device. RouterOS includes many configuration options in addition to what is described in this document. We suggest starting here to get yourself accustomed to the possibilities: https://mt.lv/help. In case the IP connection is not available, the Winbox tool (https://mt.lv/winbox) can be used to connect to the MAC address of the device from the LAN side
For recovery purposes, it is possible to boot the device for reinstallation, see a section Reset button.

...