Vex IQ Brain won’t boot up

Had a working brain the other day. Today, when you press the checkmark, the screen lights up (no print) and makes the startup sound. As soon as you release the button, the screen dies as does the brain.

Any thoughts?

Charge the battery or swap with a different charged battery and try again.


I charged the battery and same result. Had to swap it out for a different one and that cured it. Thank you.