How to open a master lock with code

Master Lock is a popular manufacturer of combination locks that are opened using a turnable dial and a pre-selected numeral code. Combination locks are typically found on school lockers, bicycle chains and personal safes. If you have never used a combination lock before and you do not have the lock's instructions handy, figuring out which direction to turn the dial and enter the code can be a bit confusing. With a little directional help, you'll have your lock open in no time.

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Step 1

Hold the lock so the shackle is facing up.

Step 2

Rotate the dial three turns to the right to the first number of the code. The number should line up with the notched arrow at the top of the lock.

Nowadays, we are living in a society where everyone wants their items to be safe. Locks’ series by Master Locks is an ideal equipment to be sure that your items have high-quality security.

You will find out about 4 types of combination locks that are great security equipment for your valuables and items.

Master Lock 1502 Combination Padlock Only

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Master Lock 975 Combination Padlock Only

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This type of combination lock is useful for the school locker, bike or anything else you need to keep in safe. If you know the combination number and follow the steps described below, you’ll open your combination lock with ease.

You can see below a simplified view of a typical three-number combination lock mechanism. The tumblers are usually called wheels. The amount of wheels in a lock is equal to the number of symbols that are used in the combination. For instance, here we can see three wheels in the lock, that is why there are three numbers in the combination.

Four-number combination lock

Here we can see a four-number combination lock, that means there are four wheels or tumblers in a lock mechanism.

Note! The more numbers the combination has, the better secure-quality the lock has.

In the 21st century we got a modern types of locks that provides a better security for our items:

Master Lock 4400D 1-29/32" Indoor Bluetooth Padlock

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Master Lock 6400SHENT ProSeries Bluetooth Shrouded Shackle Padlock

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There are locks by Master Lock that can be set up with an app in your mobile device. It helps you to open the lock with the app or make-your-own combination on the lock. Such locks are a better device for your items, they also supply a security for the doors of your office, home or other industrial places. Just scan the QR-code on your mobile phone to register the padlock. It provides not only high-quality security, but also it won't take much time for remembering the combination.

So, how to open such types of locks, you can see the instruction below:

How to open Master Lock 1502 Combination Lock

Step 1: When you get a combination lock, you can see the sticker with a lock’s combination number on the back of your combination lock. Write down the combination number and leave it in a place where you are sure no one can find it.

Warning! Remove the sticker from the combination lock carefully and throw it away. Don’t leave the sticker on the lock in case someone else finds out your combination.

Step 2:

Let’s see the parts of the lock and start opening the combination lock:

Step 3: How to open the combination lock:

1. Turn the dial on the lock clockwise to the right three times. Stop turning when the first combination lines up with the indicator.

1. Turn the dial one full turn to the left, pass the 1st combination number and stop turning when the second combination number lines up with the indicator.

1. Then turn the dial to the right and stop when the third number lines up with the indicator.

Step 4: Opening the combination lock

Pull up the shackle of the lock or pull the lock down to open the lock.

Pull up the shackle of the lock or pull the lock down to open the lock.

Warning! DON’T FORGET YOUR COMBINATION! KEEP IT IN A SAFE PLACE!

Unfortunately, if you lose the combination number of the lock, you cannot reset this lock without knowing the current combination. You'll likely need to purchase a new lock.

Master Lock How to Open a Combination Padlock - Training Video:

How to open Master Lock 975 Combination Padlock

Master Lock 975 Combination Lock has a wide brass body for a superiorly high strength and weatherability. Two-part deadlocking defends from prying, shimming, rap attacking and the seals of shackles defend every component for operating without troubles. The four-digit dials let you set-your-own combination.

Step 1:

Enter the combination (if it’s a factory-new lock, the combination is 0-0-0-0) and pull the shackle to open.

Step 2:

Turn the shackle 90* to position 1.

Step 3:

Then push the shackle down until it clicks.

Step 4:

Turn the shackle another 90* to position 2.

Step 5:

Then you can change the combination to the one you want.

Step 6:

Pull the shackle up. Verify that the dials’ remained set to the desired combination before locking. And now your lock has a new combination.

Warnings! There is no key included to the lock. That is why be careful with your combination number, DON’T forget it and DON’T tell it to anyone!

How to open Master Lock ProSeries Bluetooth Shrouded Shackle Padlock

The Master Lock No. 6400SHENT Bluetooth Shrouded Shackle Padlock has a wide metal body for durability and high-quality security. Weather cover supplies weather resistance against snow, rain and temperature extremes. The shackle is made of boron alloy, offering maximum resistance to cutting and sawing.

Way №1: Unlock with mobile device

Step 1: Firstly, you must create an account at enterprise.masterlockvault.com. Then download the Master Lock Vault Enterprise app. on your Android or iOS device, launch the app and sign in.

Step 2: In the Master Lock Vault Enterprise app. touch the sign (+) in the upper-right corner. Scan the QR-code, from the gray box located above, on your mobile device to register the padlock. Touch the name of the padlock to access the details of the padlock and manage additional settings.

Step 3: Your padlock is in Wake Touch mode. Press any button on the keypad to unlock the padlock.

Step 4: The padlock will appear under the Awake Tab in the app. Touch the blue icon 🔑 to unlock the padlock. When the light turns green, you have within 5 seconds to open the padlock or it will relock.

Way №2: Unlock with padlock keypad

Step 1: Enter the code, that is located in the black box above, into the padlock keypad and press the enter button.

Step 2: When it turns green, you have within 5 seconds to open the padlock or it will relock.

How to replace the battery on your padlock:

Step 1: Low battery will be indicated by yellow light on the padlock or through the app.

Step 2: Open the battery compartment, that is on the bottom of the padlock with a flat head screwdriver and remove the battery.

Step 3: Install the new CR123A battery, making sure that the positive and negative sides are facing the proper direction as indicated on the battery compartment.

Step 4: Close the battery compartment and tighten the screws.

How to open Master Lock 4400D Indoor Bluetooth Padlock

The Master Lock No. 4400ENT Bluetooth Padlock has a wide metal body for durability. The shackle is made of boron alloy, offering maximum resistance to cutting and sawing.

Way №1: Unlock with mobile device

Step 1: Firstly, you must create an account at enterprise.masterlockvault.com. Then download the Master Lock Vault Enterprise app. on your Android or iOS device, launch the app and sign in.

Step 2: In the Master Lock Vault Enterprise app. touch the sign (+) in the upper-right corner. Scan the QR-code, from the gray box located above, on your mobile device to register the padlock. Touch the name of the padlock to access the details of the padlock and manage additional settings.

Step 3: Your padlock is in Wake Touch mode. Press any button on the keypad to unlock the padlock.

Step 4: The padlock will appear under the Awake tab in the app. Touch the blue icon 🔑 to unlock the padlock. When the light turns green, you have within 5 seconds to open the padlock or it will relock.

Way №2: Unlock with padlock keypad

Step 1: Enter primary code shown above by pressing (up, down, left, right) directions on the padlock keypad.

Step 2: When the padlock lights green, you have within 5 seconds to open the padlock or it will relock.

How to replace the battery

Step 1: The yellow light on the padlock indicates a low battery.

Step 2: Unlock and open the padlock. Pull out the battery drawer and remove the old battery.

Step3: Install a new CR2450 battery with (+) side facing the back of the padlock.

Step 4: Close the battery drawer.

If you follow all the steps correctly, it won’t be so hard to open the padlock. Keep your items and doors safe!

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