E5450 does not display on E-port II or E-port

Hello all

I have client who did a firmware upgrade to his e5450 because his old E-Port at home would not read his new laptop. he has admin rights so couldn't really stop him. now the laptop will not register on either e-port it does not detect the monitors at all. I want to undo his firmware update but cant seem to find where when or what did it upgrade. He ran this firmware Synaptics VMM2320 MST HUB Firmware Update(http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverid=1XFPM ) can anyone help to restore his displays or do I reimage ?