How to prevent suitcase lock problems | Things to avoid when your suitcase won't open and password management

  • New Trip

Update date: 2025.10.15
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When preparing for a trip or returning home,
Have you ever panicked because you couldn't open the lock on your suitcase?

In fact, most of these problems are caused by minor operational errors or lack of management .
If you forcefully pry it open or randomly dial the number,
It may even break the lock.

In this blog, we will clearly introduce the " things you should not do " and " tips for managing passwords " that you should know to prevent such troubles.
Let's take a look at some tips to make your next trip safer and more enjoyable.

table of contents

1. The first step to preventing lock problems is "how to handle it"

2. Things you should not do when it won't open (NG behavior)

3. Tips for setting and managing your password so you don't forget it

・Settings to make it difficult to forget passwords

・Tips on how to manage it

4. New Trip TSA Lock for a safer journey

summary

FAQ: Suitcase lock trouble Q&A

1. The first step to preventing lock problems is "how to handle it"

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Suitcase lock problems
In fact, it's not that the item is "broken," but rather it is often caused by poor handling habits .

The locking part is made up of precision parts,
How you use it on a daily basis can make a big difference in the smoothness of operation and lifespan.
Here are some tips to keep in mind before you travel.

1. When closing the lock, do it gently but securely

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If you push the dial too hard or force it closed, the internal gears may become misaligned.
Simply aligning the zipper properly and making sure it closes with a gentle click can help prevent problems.

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2. Don't overpack

If you force it closed while it is packed to the brim, pressure will be placed on the lock and zipper.
Symptoms such as the dial becoming stiff and the numbers becoming difficult to move are more likely to occur.

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3. Beware of humidity and dust

After using the product at the beach or in rainy weather, sand or water may get into the locking section.
If left as is, the internal parts will become stuck and it will become difficult to turn.

After returning home, simply wipe it lightly with a cloth. The key to long-lasting use is simple care, just letting it dry .

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4. Change your number only when necessary

If you frequently change your number before or during your trip,
This increases the risk of accidentally forgetting to record or having the numbers misaligned.
The safest option is to continue using the number you have set up.

💬 New Tripからのヒント

  • ロックは「力」ではなく「扱い方」で守るもの。
  • 丁寧な使い方が、安心して旅を続けるための第一歩です。
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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. What not to do when the lock won't open (NG behavior)

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If you can't open the lock on your suitcase, you may panic and try to force it or use a tool.
It may actually make the condition worse .

Here we will introduce four things you should absolutely avoid and some tips for dealing with them safely.

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1. Forcibly pulling or hitting

Applying excessive force to the locking part can cause the internal gears and metal parts to bend.

There is a risk that the product may become irreparable .

💡Alternatives:
While moving the zipper and dial little by little,

Use a light force to check for any changes. Do not use excessive force.

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2. Forcibly inserting a wire or hairpin

Many of the "tricks" you find on the internet pose the risk of damaging the internal structure.
If the pin breaks or becomes distorted even once, the door may not open completely.

💡Alternatives:
If your model has a TSA lock, consult a specialist or manufacturer.
It is dangerous to insert anything other than the dedicated tool.

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3. Forcibly disassembling

If you remove the lock with a screwdriver,

Not only will this void your warranty, but it may also prevent you from reassembling the product.

💡Alternatives:
Check the warranty and repair contact information that came with your purchase, and request unlocking through official support .

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4. Dial the numbers randomly

If you panic and dial the number multiple times,
The internal pins may become misaligned, causing the device to not respond even when the correct number is entered .

💡Alternatives:
Move each one carefully and operate it while checking the clicking sensation.

In some cases, you can open it by trying patiently.

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🧩 Supplement: Do I need to maintain my lock?

In fact, suitcase locks do not require any special maintenance.
After use, simply wipe it lightly with a dry cloth, and if you will not be using it for a long period of time, it is sufficient to check that it is opened and closed once.

In some cases, forcing oil on the engine or frequently changing the numbers can actually cause problems.

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For more information on how to open a TSA lock, please see this article:

Related article: "Causes and how to open a suitcase password lock that won't open"

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3. Tips for setting and managing your password so you don't forget it

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Most lock problems are
Actually, it all started when I forgot my number.

But with a little ingenuity
Forgetting your password is almost impossible.

Here are some tips to help you remember and manage your password safely.

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1. Use easy-to-remember numbers

Choose a combination that is easy for only you to remember, such as your birth month or favorite number.
However, it is important to avoid numbers that are easy for others to guess, such as your exact date of birth.

💡 例：

  • 5月生まれ → 「0・5・7」など少しアレンジを加える。
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2. Take a photo after setting up

Immediately after setting the number, take a photo of the dial with your smartphone .
It's a good idea to organize your travels in a "suitcase" folder or similar so you can refer to them after your trip.
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3. Manage your notes safely with your smartphone's memo app

It is also effective to save only the "lock number" in a memo app.
If you use the iPhone's "Memo Lock" function,
There is no need to worry about being seen by others.

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4. Share with family and trusted people

Just in case you forget,
You can feel safe when you're out and about by giving your number only to your family and companions .
However, please avoid sharing it on social media or chat apps.

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5. Regularly check and maintain your number

If you don't use it for a long time, the dial may become stiff.
Check opening and closing before traveling.
Check that the dial turns smoothly and that the numbers are correct .

🧳 New Tripからのヒント：

  • 旅を楽しむための準備は、「鍵の確認」から。
  • ちょっとしたひと手間で、次の出発がぐっと安心になります。
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4. New Trip's TSA lock for safe travels

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The biggest secret to preventing trouble is to choose a reliable suitcase.

New Trip is not just a tool for transporting luggage, but a partner that helps you enjoy your trip comfortably and safely .
We pay attention to every single detail.

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Reliable locking system

All models come standard with a TSA lock , ensuring safe and secure check-in at airports around the world.


Operation is simple and the structure is less likely to malfunction, eliminating the worry of "the lock won't open" right from the design stage.

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Details that support comfort

Silent casters, a sturdy body, and a nimble handle,
We strive to provide a " stress-free operation" experience while traveling.

The design allows you to use it safely in any environment, leading to a trip where you don't break anything, rush, or get lost.

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Combining functionality and design

The New Trip's design is beautiful and understated.
The clean form is designed to give the user peace of mind and freedom .

From preparing for your trip to returning home, every moment is smooth and comfortable.

🔗 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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Suitcase lock problems often occur due to a little carelessness or misunderstanding.

However, by taking the right measures without rushing and reviewing your password management on a daily basis,
Most problems can be prevented before they occur.

New Trip's suitcase with TSA lock is a product created to support this "peace of mind when traveling."
With its reliable lock and easy-to-use design, it quietly supports your important journey.

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FAQ: Suitcase lock trouble Q&A

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Q：ロックの番号を忘れてしまいました。どうすればいいですか？

まずは初期設定の「000」などを試し、それでも開かない場合はダイヤルを1つずつ少しずつ回しながらクリック感を探ってみましょう。
どうしても開かないときは、無理にこじ開けずメーカーや鍵業者に相談するのが安全です。

Q：TSAロックが壊れた場合、修理できますか？

TSAロックはパーツ交換が可能です。保証期間内であれば購入元またはメーカーサポートに問い合わせを。保証外でも鍵業者に相談すれば対応できる場合があります。

Q：空港で鍵が開かなくなったときは？

まずは航空会社のカウンターやTSA職員に相談を。職員が専用ツールで開錠できる場合もあります。焦ってドライバーなどを使うのはNGです。

Q：日常的にロックのメンテナンスは必要ですか？

特別なメンテナンスは不要です。使い終わったあとに軽く拭き、長期間使わないときは一度開閉を確認する程度で十分。
無理に油を差したり頻繁に番号を変える方がトラブルの原因になります。

Q：New TripのスーツケースはどのモデルもTSAロック付きですか？

はい。New TripのすべてのスーツケースにはTSAロックを標準装備しています。国内・海外どちらの旅でも安心してご利用いただけます。

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