Unlock Any Master Lock Box with Our 4-Digit Code Guide

If you’re looking for a secure and convenient way to store keys, valuables or documents outside of your home, then investing in a lock box is an excellent option. While there are many different brands and types of lock boxes available on the market today, one of the most popular choices among homeowners is the Master Lock Box. In this article, we will provide you with step-by-step instructions to unlock any Master Lock Box using our 4-digit code guide.

Unlock Any Master Lock Box with Our 4-Digit Code Guide

Setting Up Your Combination Code

Before unlocking your Master Lock Box, it’s important to have your combination code set up properly. Follow these steps to set up your own unique combination:

  1. Make sure that the dials are set to their default position (0-0-0-0).
  2. Pull down on the shackle until you hear a click.
  3. Turn each dial counterclockwise until they stop.
  4. Choose four numbers which are easy for you to remember but difficult for others to guess and enter them into the dials.

It’s essential that once you’ve selected this initial combination code, it is kept confidential and not shared with anyone who shouldn’t have access.

Unlocking Your Master Lock Box

Now that you have selected and recorded your unique combination code securely away from prying eyes let’s move ahead:
Follow these simple steps below:

1) Set all dials back at zero: Rotate each dial completely clockwise three times ending at zero every time.

2) Enter Your New Combination: Turn all four dials according to the number shown in your newly established combination (for example – now we will use “1 2 3 4”).

3) Pull Down The Shackle: Grip both sides of lock housing firmly while pulling down sharply on shackle.As soon as this movement takes place,your new selection has been locked-in.If you did it correctly you’ll hear a clicking sound.


If you still are unable to unlock your Master Lock Box, try the following tips and tricks until you find success:

  1. Double-check your combination: Make sure that you’ve entered the correct numbers in the right order.
  2. Try different variations of your combination: Sometimes, mix-ups happen while setting up and after sometime people forget initial set-up codes so try all possible ways around your code.
  3. Reset the combination: If nothing else works, reset the lock back to its default settings by using pliers to turn and hold onto each dial as you rotate them clockwise 180 degrees (upside down) from their current placement. Release them simultaneously repeating this twice until they settle on zero -0-0-0.

Why Use a Master Lock Box?

Master Lock Boxes offer several advantages compared to other types of security options including keychain locks or hidden keys under rocks:

  • Security
    No matter how secure one’s front door may be, if there is a spare key lying around outside one can never feel completely safe. With an on-site lockbox installed,no-one will know what valuables are kept inside unless they have access through entering correct code

  • Convenience
    Lock boxes allow homeowners to store keys for family members or service technicians reducing hassle related with sharing keys.It also eliminates fear of scattered lost/forgotten/locked-in-the-house dilemma.

  • Versatility
    In addition to storing house keys safely, these master lock boxes can also be used for storing passports,jewelry,and other small valuables .

Overall Master Lock boxes provide peace of mind at not only allowing easier access when required but also stress free feeling knowing belongings are secure even while away from home.


Investing in a lock box such as the Master Lock is always recommended because it ensures safety not only for our sentimental values stored but more importantly minimizes risk of home intrusion.Learning how to set up and use the lock box is vital because it helps us not only have easy access but also know that anything valuable is safe. We hope our guide on how to unlock any Master Lock Box with our 4-digit code has provided you with the information you need to easily access your valuables without compromising safety or security.

Remember, always keep your combination confidential, and don’t share it with anyone who shouldn’t have access as prevention is better than cure.


Sure, here are three popular FAQs with answers for “Unlock Any Master Lock Box with Our 4-Digit Code Guide” on UClocks:

Q: How do I know if my Master Lock box uses a four-digit code?
A: Most Master Lock boxes use a combination of four digits as their security code. If you’re unsure, check the lock’s packaging or user manual to confirm.

Q: Does your guide work for all types of Master Lock boxes?
A: The guide is designed to work for most types of Master Lockboxes that use a four-digit numerical combination lock. However, some models may have different designs or mechanisms that require different methods to unlock.

Q: What should I do if the guide doesn’t work for my particular lock box?
A: If the guide doesn’t successfully unlock your specific type of lockbox, there could be several reasons why it’s not working correctly.

    First, make sure you followed all steps correctly and entered your code accurately
    Second, try resetting the combination by following manufacturer instructions (usually involves inserting a key into an opening in the back and turning).
    Thirdly, consider contacting customer service at either UClocks or directly from Masterlock’s website.