BenQ GL2040 Service Manual page 32

5. Check the FW version after upgrade.（Take below figure as an instance）
(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.
(3)If the version is right, please do factory reset in user menu as below, or re-upgrade F/W
as the above steps. The reset will turn off burn in mode.
Menu key
Check this F/W version.
32
Power on key