how to open a combination lock without the combination

How to Unlock a Combination Lock Without Knowing the Combination

• Cracking the Code. There's a way to crack the code of a combination lock when you've forgotten it. ...
• Padlock Shims. If your combination lock is older, it's possible to create a shim (a type of wedge) to force it open.
• Master Lock Reset. To reset a combination lock, such as those made by Master Lock, you'll first need to find its serial number.

Full Answer

How do you open a lock without a combination?

To set or reset the combination on your 175, 176, 177, or 178 Master Lock padlock:

• Open the lock using the previous combination.
• Insert the reset tool in the hole on the side of the lock.
• Push the reset tool in and turn 90° in either direction.
• Set wheels to your new combination.
• Turn and remove the reset tool.

How do you unlock a Master Lock without the combination?

Take these steps to reset your lock:

• Pull up the shackle to open the lock.
• Rotate the shackle 90° counterclockwise and press all the way down.
• Hold down the shackle and set your own combination by turning dials.
• Turn the shackle back as normal. The setting is now complete.

How do you open a combination lock without the code?

Method 2 : Creating a Shim for Combination Locks

• Identify the locking mechanism. To properly use a shim you require to be working at a place where the shackle locks. ...
• Make two curved incisions. Hold the small strip of aluminum horizontally and cut two curves from the bottom, somewhat resembling the letter U.
• Pop open the lock. ...

How to open a lockbox without a combination?

Know the most common targets for burglars

• Air conditioners: Use sliding window locks or corner braces to keep criminals from stealing your cooling unit.
• Mailboxes: If you’re worried about thieves stealing your mail, get a security mailbox that comes with a key. ...
• Sheds: A determined criminal can use a screwdriver to remove the screws from a shed door. ...

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How do you unlock a combination lock when you forgot the combination?

0:005:33How to Crack the Code & Open a Combination Padlock - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe need to start by pulling a little on the shackle to apply some tension to the lock I do this justMoreWe need to start by pulling a little on the shackle to apply some tension to the lock I do this just by pulling back with my finger like this.

How do you open a 3 digit lock?

Set the lock to your combination and pull out the shackle. Turn the 3 dials, so the correct combination is visible on the side of your lock. Then, pull up on the curved metal shackle at the top of the lock to open it. If you've never set the combination, use the factory combination 0-0-0.

How do you reset a Master combination lock without the code?

This lock is preset at the factory to operate at 0-0-0-0.With dials at 0-0-0-0, pull out the shackle.Turn shackle counterclockwise 90 degree (1/4 turn)Continue pressing shackle down and turn another 90 degree (1/4 turn)Set the dials to your own combination.More items...•

How do you open a combination lock with 4 numbers?

TO UNLOCK ON A TRUE FOUR NUMBER COMBINATION Starting anywhere, turn the dial right (clockwise), stopping when the first combination number comes to the opening index the FIFTH time. 2. Turn the dial left (counterclockwise), stopping when the second number comes to the opening index the FOURTH time. 3.

How do you open a 3 letter combination lock?

0:022:25Master Lock Letter Lock™ - Informational - YouTubeYouTubeStart of suggested clipEnd of suggested clipEasier to remember and easier to dial the combination is now three letters and every single letterMoreEasier to remember and easier to dial the combination is now three letters and every single letter is printed right on the dial. Clear letters wide spacing now counting hash marks in between.

How do you unlock a 3 digit Master combination lock?

0:005:32Find Lost Combination for Master Lock | Try Every Combination - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow I can tell you right away that to try 3000 to try 300 combinations it takes five minutes to tryMoreNow I can tell you right away that to try 3000 to try 300 combinations it takes five minutes to try 600 combinations it takes about ten minutes and to try all thousand it takes about 15 minutes.

How do you crack a hard combination lock?

0:334:30How to unlock a combination lock (no paper, no pens, no aluminum)YouTubeStart of suggested clipEnd of suggested clipBut just push firmly. Okay now you when you start turning it to the right you're gonna feel it'sMoreBut just push firmly. Okay now you when you start turning it to the right you're gonna feel it's gonna go really slow okay and eventually. It's gonna pick up in speed. It's gonna kind of like release.

How do you pick a combination lock with a bobby pin?

0:001:53How to Pick a Lock with a Bobby Pin - YouTubeYouTubeStart of suggested clipEnd of suggested clipTo pick a lock with a bobby pin. First bend open a bobby pin until it makes a 90 degree angle andMoreTo pick a lock with a bobby pin. First bend open a bobby pin until it makes a 90 degree angle and remove the rubber piece on the straight end make a slight bend at the tip of the straight. End.

How do you unlock a combination lock with a paperclip?

2:406:00How to pick a combination lock with a paper clip / sewing needle life hackYouTubeStart of suggested clipEnd of suggested clipOne two. So you can see on the second one there if that will focus in time the second number is I inMoreOne two. So you can see on the second one there if that will focus in time the second number is I in line on the left side of the lock. Third. Number is on the right side of the lock.

How long would it take to guess a 4 digit PIN?

It would take up to 112 hours to brute force a 4 digit PIN, because each PIN entry takes 40 seconds.

How do you open a 4 combination Master Lock?

0:051:11Operating the Master Lock high security combination locks - YouTubeYouTubeStart of suggested clipEnd of suggested clipPosition. Set the wheels to the desired combination. As an example we'll choose one two three fourMorePosition. Set the wheels to the desired combination. As an example we'll choose one two three four then turn and remove the reset. Tool the lock is now set to its new combination.

What side is the lock mechanism on?

The locking mechanism will be on the left-hand side. You'll need to exert some pressure on the lock's latch – enough so the dial can turn, but not so much that it spins freely. This tension is essential in order to feel when you hit the right number of the combination and the mechanism engages. Advertisement.

How to reset a master lock?

Master Lock Reset. To reset a combination lock, such as those made by Master Lock, you'll first need to find its serial number. Contact the manufacturer of the lock with this information . You'll most likely need ID and proof of purchase, particularly if the lock is attached to a box or safe. The manufacturer will be able to reset the combination ...

How to change a latch?

It's best to start clockwise and then change to counterclockwise. What's most important is remembering which direction you started with. Turn the dial. If it never catches, you haven't put enough pressure on the latch. If it's clicking at every number, you've put too much pressure on the latch.

Where do you put a shim on a lock?

They usually come with specific instructions. Generally, they're inserted into the left-hand side of the lock's latch and trick it into coming open. Shims don't tend to work on newer locks, however, and can end up damaging the mechanism instead. Advertisement.

Can you use combination locks on cupboards?

By Annie Walton Doyle Updated August 30, 2018. Hunker may earn compensation through affiliate links in this story. Combination locks can be used on cupboards, boxes and safes to secure valuable or important goods inside. However, trouble can arise if you forget the combination code to unlock it.

Can you break a combination lock with brute force?

While most manual combination locks can be broken using brute force, this takes a lot of time and energy, and for good reason. Luckily, there are other ways to open a combination lock when you don't remember the combination. Advertisement. How to Unlock a Combination Lock Without Knowing the Combination.

Where can I buy a combination lock?

Buy a combination lock. Combination locks can be found at most hardware, home improvement, and sports stores across the US. Some stores that sell combination locks are The Home Depot, Lowes, Sears, Modell's, Staples, and Walmart.

How to reset a lock?

1. Turn the dial on the lock clockwise three times. Turn the dial to the right. This clears the lock and resets it so that it's ready to open. 2. Stop turning when the marker points to the first number of the combination. The marker or line should be at the top of the dial, pointing to the twelve o'clock position.

Where is the marker on a lock?

The marker or line should be at the top of the dial, pointing to the twelve o'clock position. In many cases, it will be red. The first number on this lock's combination is 36, so you should stop turning the dial when the marker points to that number. Turn the dial back to the left for one full turn.

How to open a combination lock without a code?

Never open combination locks that do not belong to you. Method 1: Cracking the Code of Combination Locks. Method 2: Creating a Shim for Combination Locks.

What is a combination lock?

Combination Locks are capable of securing items within any home or place. But in case you lose or forget the combination to the lock to open it, situation becomes very tense and can be very frustrating at times as no combinations means no access to your possessions.

How to use a shim?

Generally the mechanism is on the left side while looking at the lock and the shackle is on the top and the dial faces you. Cut aluminum can. Make a shim by cutting up a soda can.

How to make a shim out of soda can?

Make a shim by cutting up a soda can. Use scissors and cut off the can top, till the bottom and then to cut off the bottom. You will get a rectangular single piece of aluminum as a wide strip of metal. Cut a strip of metal. Turn it horizontal and cut the shorter side of the material to be used to make the shim.

How to find the second number when clicking?

When click happens between two numbers, take the higher number. Now, add 5 to clicked number and write it down which will be considered is the first number of the combination. Turn the dial anticlockwise to find the second number. With a gentle pressure on the shackle, turn the dial slowly.

Can you get a combination lock over the phone?

Due to security concerns, manufacturers are most likely not offer the combination over the phone or via email. You might be requested to furnish proof that you own the lock, such as a receipt of the lock to prove your ownership. Consult the owner.

Can a retailer assist you when the lock is attached to an object sensing some foul play?

This will help you to get the combination. Retailers might not assist you when the lock is attached to an object sensing some foul play.It is better to carry the receipt of the product in case you have it. Beware that the retailer may charge a fee for their service unless the product is under warranty.

How to get the first number of a combination?

Start going through the numbers on the dial, one number at a time, until you find the first number of your combination. Spin the dial clockwise twice past zero, enter the first number on the dial that is not two or six more than the second number, turn the dial counterclockwise past zero to the second number, and then turn it clockwise past zero ...

How to change the dial on a Master Lock?

Step 1. Move the Master lock's numbered dial clockwise; spin the zero past the indicator arrow for three consecutive passes. On the fourth pass, leave the zero under the arrow. Pull the shackle clasp up, which will make the dial stick and somewhat difficult to move.

What is a master lock?

Master combination locks are used to secure lockers at school, work or the gym, as well as shed doors and equipment chests. If you forget the combination and can't find where you stored the information sheet that came with the lock, you have a couple of options. You can either send the lock to Master Lock and wait several weeks to get ...

How to write a second number?

The remaining number is the second number of your combination. Write "second combination number" at the top of the paper and write down the number you came up.