To connect a new device to your myOsmo account, please open any Osmo app and follow the instructions to log into your account.
You can see your activation code on your myOsmo home page if you log into myOsmo in your browser. The code will only be displayed if you have a school account, so if you don't see it, you may need to update your account information.
To do that, click on "Account" on the left of your myOsmo home page and select 'At School' as the location where you use your Osmo.
For more information, please see our instructions for myOsmo account creation and management.