From time to time you may encounter trouble with your Kano operating system, or have difficulty writing the latest OS on to your SD card.
One possible cause for this is that the slider on the left-side of your SD card may be set to the locked position, thus preventing any data being modified on the card.
The first thing you should ensure is that your SD card slider is in the upward position, as in this picture:
If you are still experiencing problems after you have tried this, it may be necessary to submit a request.