How to reset password sony vpl-ex100 projector?

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Sony VPL EX100 Operating Instructions Manual Using Network Features vpl...

here's the user manual of the prjector:

https://docs.sony.com/release/VPL-DX126_DX146_DW126.pdf

i've readed it and i guess you should push the reset bottom in the remote.

1,Connect the power cord
2,The On/Standy light is red.
3,Press the following keys on the Remote Commander or on the projector in the following order for less than 5 seconds :Reset,left,right,enter.

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my sony projector ex100 when i on my projector it just gone stand by mode

If the Panel Key Lock feature was set to 'on' so that the Remote Commander could be used the user manual, page 34, says, "If you press and hold the MENU key for about 10 seconds when the power is on, the lock will be released and "Panel Key Lock" is automatically set to "OFF"."
However, if the Security Lock feature was set, which requires a password, and you don't know what the password is you have to call the Sony Customer Service center and be ready with the device's serial number and your personal information.

Turn the projector on and leave in standby mode. To do this press the power on button for 10 seconds until the projector comes on.
To unlock the main panel keys, press the MENU button for 10 seconds.

Connect with power cord and turn the projector to the standby mode.
Press the following keys on the control panel in the following order for less than in five seconds each: RESET, LEFT arrow key and RIGHT arrow key and then ENTER.(showing in the picture below)
(NOTE projector must be in standby mode and keys pressed less than five seconds)
now press power/standby key to ON the projector and check lamp hours

Pressing the On/Off Key for 10 seconds switches on and off the projector.
While on, press the menu key for 10 secods to reset it to unlock.

Hi,
After replacing lamp, connect projector AC power cord and turn the projector in standby mode.

Press following keys on control panel for less then 5 seconds each..
RESET, <==, ==>, ENTER.
That will reset lamp timer in projector.
Thanks.