From Planet Computers
You can download the available Android firmware archive below:
* [http://support.planetcom.co.uk/download/cosmo-android-v22.zip http://support.planetcom.co.uk/download/cosmo-android-v22.zip] (MD5: 63ff496aa47dd72fc81fdc3d3be2a1cb)
* [http://support.planetcom.co.uk/download/cosmo-android-v19.zip http://support.planetcom.co.uk/download/cosmo-android-v19.zip] (MD5: 4cfe693455042b4479e6638ba005f3d3)
Please note that if you upgrade
to v22 your user data will be preserved. However, if you downgrade from v22 to v19 , the device will not be able to access your data and it will prompt you for a factory reset.
Once you downloaded the zip archive you will have to extract its content onto your microSD card: