Have you tried pulling the battery again and waiting maybe 3 minutes before re installing it? Otherwise you are looking at re installing the OS. What OS were you using when this happened?
Thank you for the information provided.
DaveATW, this issue requires to install the software back on the device. To resolve this issue on a computer running Windows®, perform a clean reload of the BlackBerry® Device Software on the BlackBerry® smartphone using the application loader tool.
Click the link below for step by step instructions on how to install the software back on your BlackBerry.