Raspberry Pi Learning Resources

Only the red light on my Pi is on! Is it broken?

By default, both the red light and the green light should come on when you connect the power supply to your Raspberry Pi. The green light will flash to indicate software activity. If there is no activity, then it is likely that there is a problem with your SD card. Try the following steps:

  1. Check that your SD card is inserted correctly into your Raspberry Pi.
  2. Check that your SD card contains the software required for the Raspberry Pi to boot by following our software setup guides in this help section of the website: