- Primary Subject: 007 First Light
- Key Update: The Knightfall mission's laser sensor puzzle requires players to use the ventilation system, Q-Watch hacking, and a cleaning robot to bypass a security lockdown.
- Status: Confirmed
- Last Verified: June 2026
- Quick Answer: Move the wrapped furniture and enter the vent behind it. From Isola's office, use the Q-Watch to unlock the meeting room, then continue through the vents to the other side. Enter the meeting room, summon the cleaning robot, and use the newly opened route to reach the security terminal and disable the sensor system.
The laser sensor puzzle during the Knightfall mission is one of the first moments in 007 First Light where the solution is not immediately obvious.
After making your way through Webb Industries with Greenway, Bond eventually enters the East Wing hallway and accidentally activates a grid of floor sensors.
This triggers a security lockdown that seals nearby doors and prevents any further progress toward the Perch.
At first glance, it may seem like the objective is simply to avoid stepping on the sensors, but the real solution requires using the building's ventilation system, Bond's Q-Watch, and even a surprisingly helpful cleaning robot.
Since the game provides very little direct guidance, it's easy to spend several minutes wandering around the hallway looking for an exit.
Where Do You Go After Triggering the Lockdown?
The first thing you'll want to do is ignore the locked doors and search the side of the hallway instead.
Near the sensor grid, you'll find a collection of wrapped furniture blocking a passage.
Interact with it and Greenway will help move the obstruction out of the way.
Behind it is a ventilation entrance that serves as your route around the security system.
Once inside the vents, continue forward but keep an eye out for the first side exit.
A lot of players mistakenly crawl all the way to the end of the duct without realizing they need to leave earlier.
Take the vent opening that leads into Isola Vale's office.
Before continuing, you can explore the room if you'd like, as there are several optional documents and pieces of environmental storytelling scattered throughout the office spaces in this section of the mission.
How Do You Unlock the Meeting Room?
Leave Isola's office through the main door and carefully step into the hallway.
The floor sensors are still active, so avoid touching them. Instead, look through the glass toward the office on the opposite side.
You should be able to spot a door controller positioned behind the window.
Although you cannot reach it directly, Bond's Q-Watch can hack it remotely.
Use the watch to unlock the nearby meeting room. Many players assume the puzzle is finished at this point, but there's still another step required.
Return to the ventilation system and continue through the ductwork until you reach the opposite side of the East Wing. This route eventually brings you near Damien Webb's office.
Exit the vents, leave the office area, and make your way to the meeting room that you unlocked moments earlier.
Inside the meeting room is a maintenance panel that allows Bond to request cleaning services.
Interacting with it summons a robotic vacuum cleaner. While it sounds like a joke solution, the robot is actually the key to progressing.
As it begins its cleaning route, nearby security doors automatically open to allow it access to restricted areas.
How Do You Disable the Sensor Security System?
Take advantage of the newly opened doorway and move through before it closes.
On the other side, you'll finally find the control panel connected to the building's sensor security system.
Interact with the terminal to disable the laser sensors and lift the lockdown.
With the security system shut down, the East Wing becomes fully accessible again.
Greenway can safely follow Bond through the area, the previously locked doors reopen, and the route to the Perch is finally clear.
If you've been stuck trying to find a way around the sensors, the key is remembering that the puzzle isn't about avoiding the lasers themselves but about finding the alternate path hidden behind the furniture, using the Q-Watch to unlock the meeting room, and leveraging the cleaning robot to gain access to the security controls.
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