Make sure the headset is connected to the internet via Wi-Fi.
Log in to Self-Study (Offline) mode on the headset with teacher credentials.
From the Apps and Settings tiles, click Update.
If you have an earlier version, you should be offered an update. You can follow the prompts to download and install the update and then reboot.
Your EduPro should now be up to date! If you wish to check and make sure, you can return to the Update tool and see the installed version. The current version ends in SP236.