What can I try if a combination lock's code is forgotten?
Answer
Most small combination locks ship with a factory-set default code, and if it was never changed, that default may still work. If the code was changed and truly forgotten, most retail combination locks need to be cut off, since they aren't designed to be picked or reset without the code.
Before you start: stop right away if…
- Use cutting tools carefully and wear eye protection; a shackle can snap suddenly once cut through.
Follow these steps
Check for a factory default code
Look at the original packaging, a card that came with the lock, or the lock body itself for any printed reference number that could be a default code.
You should see: A default code is found and can be tried, or none is available.
Compare with other locks from the same set
If the lock came in a multi-pack, check whether other locks in that set are still on their original factory code, which is sometimes the same or listed together on the packaging.
You should see: A working code is identified from a sibling lock, or the codes are confirmed to be different.
Try slow, methodical combinations
If only a couple of digits are forgotten, try each remaining possibility slowly and fully, since many small locks require turning past the full sequence rather than just landing on the numbers.
You should see: The lock opens on a correct guess, or all reasonable guesses are exhausted.
Contact the manufacturer's support
Look up the lock brand's official customer support to ask whether they keep records of codes by serial number or offer a reset process for registered locks.
You should see: The manufacturer confirms a code lookup is possible, or explains that this information isn't kept.
Cut the lock as a last resort
If no code can be recovered, use bolt cutters or a hacksaw on the lock's shackle, the metal loop, taking care to protect whatever the lock is securing from damage.
You should see: The shackle is cut through and the lock releases.
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Extra tips
What to look for: Any sticker, card, or packaging that lists a factory default code, and whether other locks from the same multi-pack still use that same or a similar default.
Before you change anything: Check whether the original packaging, receipt, or a paper insert lists a default code. Look at any other locks purchased at the same time as a set for a matching factory code. Confirm whether the lock is used for anything requiring quick access, such as a gym locker with a time limit. Avoid forcing or prying the lock, which can damage whatever it is securing.