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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesTo open the upstairs safe in the Call of Duty: Black Ops 6 campaign safehouse, complete the puzzles in order: restore power in the boiler room, use the blacklight to solve the piano clue, crack the basement keypad, finish the computer and lockpicking steps, then derive the safe code from the radio message and blacklight-visible digits. The keypad and safe codes depend on the clues in your game, so use the feedback and evidence in your own safehouse rather than relying on a code posted for someone else.
Safehouse puzzle order
The route links six steps: boiler, piano, basement keypad and computer, lock and key, radio, and upstairs safe. The blacklight helps reveal clues at several points. Follow the sequence below; if a passage does not open, check that the preceding puzzle is complete.
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- Restore power with the boiler controls.
- Read the piano markings under blacklight and play the indicated keys.
- Use the keypad’s feedback to determine its code.
- Complete the computer puzzle and pick the lock to get the key.
- Tune the radio, identify the objects in its message, and read their digits with the blacklight.
- Enter those digits in message order at the upstairs safe.
Restore power in the boiler room
Start in the basement boiler room. Operate the controls in the correct sequence to restore power and open access to the next part of the route. If you cannot proceed, return to the boiler and check that the sequence has been completed.
Use the blacklight to solve the piano puzzle
Find the blacklight and examine the piano area for the markings that indicate a key sequence. Play the marked keys in the order shown by the clue. Use the markings in your own game as the guide rather than assuming a copied key list applies to every run. Completing the sequence opens the concealed passage beside the piano.
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- Developed by Treyarch and Raven, Call of Duty: Black Ops 6 is a spy action thriller set in the early 90s, a period of transition and upheaval in global politics, characterized by the end of the Cold War and the rise of the United States as a single superpower.
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Crack the basement keypad with its feedback
Interact with the keypad and test digits, paying attention to the game’s response. Its feedback tells you whether a tested digit is absent, is in the code but in the wrong position, or is correctly placed. Use those results to narrow down the code systematically; another player’s keypad answer may not match yours.
Complete the computer and lockpicking steps
Continue to the computer puzzle and solve it to progress. Then complete the lockpicking interaction and collect the key it provides. These steps unlock the route to the radio room; follow the clues and interface in your game rather than treating a fixed solution as universal.
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Derive the upstairs safe code from the radio clue
In the radio room, adjust the signal until the message is clear enough to understand. Listen for the objects named and write them down in the order mentioned. Use the blacklight to find the digit associated with each object, then enter those digits in that same order at the upstairs safe. This clue-based method is the reliable way to get your safe code; a single four-digit answer from someone else’s run may not work for you.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What you get for opening the safe
Dan Allen Gaming’s 2024 walkthrough reports a reward of $1,000 in-game cash, a melee weapon blueprint, and an achievement or trophy for completing the safehouse puzzle chain. The reported cash amount is a game reward, not real-world currency.
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