If you come across Error Code C665 on your TM6 device, this indicates that there is a mismatch between the country linked to your Cookidoo® profile and the region currently set on your device. This situation typically arises when your Cookidoo account is registered in a different country than the one selected on your TM6.
To rectify this issue, you will need to navigate to the "Settings" menu on your TM6. Once there, look for the option labeled "Country." It is essential to update this setting so that it aligns with the region where you originally registered your Cookidoo account. By making this adjustment, you should be able to eliminate the error and restore full functionality to your device, allowing you to access all the features and recipes available on your Cookidoo profile.
If you need further assistance, please contact us at https://service.thermomix.com/hc/en-us/requests/new. Our Customer Happiness agents will get back to you in 1-2 business days.