Cortex Failure

Today is our state competition, and last night while we were practicing our cortex completely failed. It wouldn’t light up when plugged into a battery or the computer, so I assume it is completely dead. Luckily we had a couple of brand new ones so we were able to replace it. Does anyone know what could have caused this problem?

Check the power connector and power switch - that is usually a cause for complete failure. However, from your post you indicate there are no lights when connected with USB, which sounds like a complete failure. We have not experienced that yet.

If you didn’t smash the cortex I would RMA the product to Vex and they will tell you exactly what happened or give you a new one.