Check the software version that comes pre-installed on the unit...
*power on the unit...
*when the welcome screen shows - press "Menu"...
*of the choices listed...scroll down to "System Status"...
*note which version of software is pre-installed...
*download that pre-installed software version to your PC (or to a fully formatted separate SD Card)...
You will need it in the future...I promise...
Rickie