serial number Q5727 JBHS Installed 9/28/16.
Thanks for posting on the Support Community.
I’ve edited your serial number as we don’t need this on the community.You can contact Promethean Technical Support directly by following the steps on the below link:https://support.prometheanworld.com/contact/
If you are emailing in, please give as much details to the fault and steps that have been tried. If you are unaware of driver and firmware versions please see the below link:https://support.prometheanworld.com/article/?kb=1137
Kind regards,AdamPromethean Technical Support