BenQ G2450HM Service Manual page 41

4.9.Successful upgrade. When upgrade successful, there will be green Pass letter appearing.
5. Check the FW version after upgrade.
(1)Connect signal source and power cable to monitor and DC off it.
(2) Press "menu" key and "power on" key synchronously as below figure. When the screen lights, release the
two buttons and then press "menu" again to open below factory menu.
Menu key
Check this F/W
version.
41
Power on key