Trouble with 7290

I bought a 7290 off of eBay and when I connect it to my PC and try to install appications, I get the following error The BlackBerry software doesn't have BlackBerry Device Software for the device that you have connected to the computer. Contact your wireless service provider or system administrator. Is it possible to wipe the device and reinstall the OS on the BlackBerry or what can I do to get it to a factory state?

Yes, wipe the handheld and install the newest OS and lastest desktop manager