Reasons why your suitcase password lock won't open and how to open it

  • New Trip

Update date: 2025.10.14
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Have you ever had the experience of not being able to open the password lock on your suitcase while preparing for a trip?
If you forget the number or can't unlock the TSA lock properly, you'll probably feel anxious before you leave.

In this blog, we will explain some quick solutions you can try when your suitcase lock won't open, as well as how to safely open it by type.
In addition, we will clearly explain how to request assistance from manufacturers or locksmiths, as well as first aid measures to take when traveling.

table of contents

1. Why can't I open the password lock on my suitcase?

2. Lock characteristics and mechanisms of each type

3. How to open by type and how to deal with locksmiths and manufacturers

・How to open a zippered suitcase

How to open a dial lock

・How to open a TSA lock

・Locksmith and manufacturer support

4. New Trip's TSA lock for safe travels

summary

FAQ: Suitcase lock trouble Q&A

1. Why can't I open the password lock on my suitcase?

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"The lock won't open!"
If such a problem occurs while preparing for a trip, anyone would panic.

But in most cases, the cause is a small misalignment or operational error .
First, stay calm and check the most common causes.

Common causes

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- Number misalignment <br>Even a slight misalignment of the numbers may prevent the lock from being released, even if the number is correct.
Wear of the dials can also be a cause, especially if the suitcase has been used for a long time.

・Misoperation of TSA lock
When TSA staff relock your lock after inspection, the number may change.
There are many cases where people return home to find that the box no longer opens.

- I forgot the number . This is a common problem that occurs when using the phone with the default settings or when using it for the first time in a while.

- Internal malfunctions and deterioration over time <br>Dust, rust, and metal distortion can cause the lock to malfunction.
In this case, applying excessive force may cause damage.

- Impact or deformation : Strong impact during transport may cause the locking mechanism to become dislocated.
Metal locks, in particular, can have internal parts that bend.

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First thing to check

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If it doesn't open, check the following points:

✅ Is the dial exactly centered? ✅ Is the TSA lock lever in the correct position? ✅ Is the zipper slider not stuck? ✅ Does the number change even if you move it slightly? ✅ Are you pulling too hard?

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For more information on how to use TSA locks, please see this article:

Related article: How Zipper-Type TSA Locks Work and How to Use Them Correctly | What to Watch Out For When They Won't Open

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2. Lock characteristics and mechanisms of each type

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There are several types of suitcase locks.
First of all, it's important to know what type of suitcase you have.

Understanding how each works will make it easier to know where to check if the app won't open .

1. Key lock (key type)

This is the simplest type, and can be opened and closed simply by inserting and turning the key .
However, if you lose the key, you won't be able to open it yourself.

Features:

- The inside of the keyhole has a pin cylinder structure

・Some models are so simple that they can be opened by lock picking.

・It is important to keep a spare key as there is a risk of losing it.

Recommended for:
For those who prefer simple operation and do not want to change their numbers frequently.
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2.TSA lock (airport inspection compliant)

At many airports, including those in the United States, you will need to open your suitcase during baggage inspection.
If it has a TSA lock , you can leave it locked and check it in without worry .

Features:

- "TSA" engraved on the keyhole

・Staff can unlock it using a special tool

・There are also problems with numbers changing after testing.

point:
When the TSA lock does not open, it is often due to a mismatch in the number or a mismatch in the re-lock after inspection .
First, reset the number to its initial value, such as "000," and check.
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3. Dial lock (password type)

This is the most common type, where you unlock it by matching the numbers.
Turn the 3-digit or 4-digit dial to set the desired number.

Features:

You don't need to carry a key

- Easy to reset by simply changing the number

・Many problems occur due to mismatched or forgotten numbers

point:
If there is a small groove or mark below the number, that is a hint to unlocking the lock.
Also, with older models, even a slight misalignment of the numbers may prevent the lock from opening.
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3. [Complete Guide] How to Open a Suitcase (by Type)

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If the lock won't open, first check the type of suitcase.
The way to open it varies depending on the type.

Here we will introduce three typical types of safe opening methods .
Whatever the method, the key is to try it slowly and without using too much force.

1. How to open a zippered suitcase

For zipper types, there is an emergency fix that allows you to open it without using a key .
However, this method should only be used as a last resort, as it may damage your suitcase.

procedure:
1. Move the zipper slider (pull tab) to the edge
2. Insert the tip of a ballpoint pen or similar into the center of the zipper
3. Open the zipper with your fingers while gently pushing it in.
4. Once opened, remove your belongings and move the slider to the other side.

Although the zipper appears to be closed, it can be returned to its original position by sliding the zipper part .
However, be careful not to do this repeatedly as it may cause damage.

💡 ポイント：

  • この方法は「鍵を解錠する」のではなく、「チャック部分を一時的に開く」だけです。
  • 旅行中の緊急対応としてのみ活用してください。
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2. How to open the dial lock

A combination lock is opened by entering a number combination .
If you have forgotten the number or it is out of sync and you can't open it, try the following steps:

procedure:
1. First, try setting it to "000" or "0000"
2. If it doesn't open, look for the small groove underneath the number
3. Slowly turn each dial to find the position where the grooves line up.
4. Once all the grooves are aligned, try pressing the unlock lever.

If it doesn't open, try again, changing the numbers slightly.
If it's three digits, there are a maximum of 1,000 possibilities, but if you keep trying patiently you can often get it to open.

💡 ポイント：

  • 強くレバーを押したり、無理に回すのはNG。
  • 内部ギアを傷めると修理が必要になります。
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3. How to open a TSA lock

TSA locks have a slightly unusual structure.
If the lock does not open even after matching the numbers, the numbers may have changed since the inspection .

procedure:
1. Check the keyhole and reset the number to the initial value "000".
2. If it still doesn't open, try gently pressing the pin inside the keyhole with tweezers or a hairpin.
3. Move gently, without applying force.

This method is a bit delicate.
If you are not familiar with this, it is best to consult the manufacturer or a locksmith .

💡 ポイント：

  • TSAロックの内部には細かいピンがあり、無理な操作で破損する恐れがあります。
  • 素人判断で分解したり、針金を無理に差し込むのは避けましょう。
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Each type of lock has a different solution.
The quickest way to solve any of these methods is to take your time and try them out little by little.
If it still won't open, consider contacting the manufacturer or a locksmith, as described in the next chapter.

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Related video: "What to do when you forget the password for your suitcase's TSA lock!"

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4. Support for locksmiths and manufacturers

🧰 メーカー・鍵屋に依頼する場合

自分で開けられない場合は、専門家に依頼するのが安全です。
メーカーまたは鍵屋、どちらも状況に応じて対応してくれます。

  • メーカー修理： 保証期間内なら無償対応のケースも。費用は約5,000〜10,000円前後。
  • 鍵屋依頼： 出張対応ならその場で開錠可能。費用は約5,000〜8,000円＋出張費。

💡 旅行中はホテルや空港のスタッフに相談するのも安心です。
無理にこじ開けず、まずは専門家へ。

⚖️どちらを選ぶべき？

条件 おすすめ
時間に余裕がある 🧰メーカー依頼（確実・安心）
すぐに開けたい 🔑鍵屋依頼（スピード重視）
保証期間内 🧰メーカーが最優先
海外や旅行中 🔑現地の鍵業者・ホテル修理サービス
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4. New Trip's TSA lock for safe travels

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To reduce the anxiety of not being able to open the lock during your trip,
Choosing a reliable locking mechanism is paramount.

All New Trip suitcases are
Comes standard with a world-standard TSA lock .
We also comply with airport inspections in the United States and other countries.
You can leave your luggage safely while it is locked.

Why choose New Trip's TSA lock?

・Compliant with international standards : Enables smooth inspection at major airports around the world

High-precision dial : Designed to prevent misalignment of numbers

- Reinforced frame structure : Resistant to external impacts, reducing the risk of breakage

- Silent casters and lightweight body : Comfortable support for the entire journey

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New Trip's idea of ​​"peace of mind"

New Trip's lock function is not just for security purposes.
We believe this is a design element that supports trust and comfort during travel .

Even in the event of an emergency, you can act calmly.
All of our models are equipped to meet this need.

🔗 安心のTSAロック搭載モデルを見る

New Trip スーツケース一覧へ
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summary

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When the lock on your suitcase won't open, the important thing is to "stay calm, don't break it, and respond correctly."

Many problems, such as incorrect numbers or incorrect operation of the TSA lock, can be resolved by staying calm and following the steps.

If you are unable to open it yourself, there is reliable professional support available from manufacturers and locksmiths.

And for your next trip, choose a New Trip suitcase with a secure TSA lock.


Its functionality and reliability will make your journey more comfortable.

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FAQ: Suitcase lock trouble Q&A

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What if I forget my number?

First, try the basic number, such as the default "000," and if that doesn't work, try changing the number little by little. You can also try searching by feeling the sound or resistance inside. If that doesn't work, it's safest to contact the manufacturer or a locksmith.

Can the TSA lock be repaired if it breaks?

TSA locks can be replaced with new parts. If it is still within the warranty period, have it repaired by the manufacturer. If it is not under warranty, consult a locksmith or authorized repair shop. Please note that forcible disassembly will void the warranty.

What should I do if my lock won't open at the airport?

First, consult with the airline or TSA counter. Staff may be able to open the lock with a special tool. It's best to have staff present when trying to pry the lock open, rather than rushing.

Is it okay to lock and check in a suitcase with a TSA lock?

Yes, you can. TSA-approved locks can be opened by TSA staff using a special tool, so you don't have to worry about your luggage being damaged during inspection even if it is left locked.

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