Download the v0.6 OTA update binary from here:
https://drive.google.com/file/d/1D6U-4ZN77vfxXTYdOpx5dqSHFskNEpAS/view?usp=sharing
Connect to the LaserCube in WiFi Server mode, as described in Initial Setup.
Browse to 192.168.1.1 and log in using the following credentials:
User Name: LaserCubeUser
Password: Laser2020
Go to the Update Tab. Click Choose File and select the update binary. Click Upload.
Wait for the update to complete and the LaserCube reboot.