FM WhatsApp includes several privacy features designed for users who want more control over their conversations. One of the most useful options is chat locking, which can help protect private conversations from people who may access your phone.
Some FM WhatsApp versions also include hidden chat options or secret code features. These tools can make selected conversations less visible and add another layer of privacy. However, the exact names and locations of these settings can change between versions.
If you want to learn how to lock chats in FM WhatsApp with a secret code in 2026, this guide explains the general process, how hidden chats work, and what to do if the feature does not appear.
What Is Chat Lock in FM WhatsApp?
Chat Lock is a privacy feature that restricts access to selected conversations.
Instead of allowing anyone who opens FM WhatsApp to immediately view a private conversation, the chat can be protected with an authentication method.
Depending on your FM WhatsApp version, available options may include:
• Password
• PIN
• Pattern
• Fingerprint
• Secret code
• Hidden chat access
The exact choices depend on the version installed on your device.
What Is a Secret Code?
A secret code is an additional privacy mechanism that can be used to protect or locate hidden conversations.
In supported FM WhatsApp versions, you may be able to assign a code that must be entered before hidden chats become accessible.
This can be useful if you do not want locked conversations to remain clearly visible in your normal chat list.
How to Lock a Chat in FM WhatsApp
Step 1: Open FM WhatsApp
Launch FM WhatsApp and open your chat list.
Step 2: Select the Conversation
Find the conversation you want to protect.
Depending on the version, you may need to long press the chat or open the individual chat’s options.
Step 3: Choose Chat Lock
Look for an option such as Lock Chat, Chat Lock, Private Chat, or Hide Chat.
Step 4: Select an Authentication Method
If available, choose a PIN, password, pattern, fingerprint, or secret code.
Step 5: Confirm the Lock
Enter the required code again and confirm.
The selected conversation should now have additional protection.
How to Set Up a Secret Code
If your FM WhatsApp version supports secret codes, the option may be available inside the locked or hidden chats section.
The general process is:
- Open FM WhatsApp Settings.
- Enter Privacy or Security.
- Find Locked Chats or Hidden Chats.
- Look for Secret Code.
- Create a unique code.
- Confirm the code.
- Save the setting.
- Test access before leaving the menu.
Do not use a code that is easy for another person to guess.
How to Open Hidden Chats
The process can vary between versions.
Some builds may provide a dedicated Locked Chats folder, while others may require entering the secret code through the search area or another designated location.
If you cannot find your hidden conversation, do not immediately assume that it has been deleted. Check the privacy and chat-lock settings first.
Choosing a Strong Secret Code
Your secret code should not be something obvious.
Avoid using:
• Your birth year
• Your phone number
• 1234
• 0000
• Repeated numbers
• Your name
• Easily guessed personal information
A longer and less predictable code is generally preferable.
Chat Lock vs App Lock
These features serve different purposes.
| Feature | Main Purpose |
|---|---|
| Chat Lock | Protects selected conversations |
| Secret Code | Adds access control for hidden chats |
| App Lock | Protects the entire application |
| Fingerprint Lock | Uses biometric authentication |
| Pattern Lock | Uses a visual pattern |
| Password Lock | Requires a text password |
You can use an app-level lock together with individual chat protection if your version supports both.
What Happens to Notifications?
Chat locking can affect how notifications are displayed, depending on the version.
A privacy-focused configuration may hide message previews or other information from the lock screen.
If private conversations are important to you, check notification settings after enabling chat lock. There is little benefit in hiding a chat inside the application if its full contents appear openly in notifications.
What If You Forget the Secret Code?
This is an important consideration before activating hidden chats.
Some FM WhatsApp versions may provide a recovery mechanism, while others may not.
Before using a secret code, make sure you understand how recovery works in your specific version.
Do not rely on a code that you are likely to forget.
Common Chat Lock Problems
Locked Chat Cannot Be Found
Check whether the conversation has been moved to a hidden or private section.
Secret Code Does Not Work
Make sure you are entering the exact code you created. Check for spaces or capitalization if the code uses letters.
Fingerprint Authentication Fails
Clean your phone’s fingerprint sensor and verify that your device fingerprint system is working normally.
Notifications Still Show Details
Review FM WhatsApp notification privacy settings and Android lock-screen notification settings.
Privacy Tips
Chat locking is only one part of protecting private information.
You should also:
• Use a secure phone lock
• Avoid sharing your device unlock code
• Keep important backups protected
• Review application permissions
• Avoid suspicious FM WhatsApp APK files
• Use a strong secret code
• Keep your application updated when appropriate
Remember that chat locking does not protect information that you deliberately share outside the application.
Frequently Asked Questions
Many FM WhatsApp versions provide individual chat-locking options.
A secret code can provide additional access control for hidden or locked conversations in supported versions.
Some builds provide hidden chat functionality, but the exact behavior depends on the version.
Recovery options vary. You should check the recovery mechanism of your particular FM WhatsApp version before setting a code.
No. Chat lock protects selected conversations, while app lock protects access to the entire application.
Conclusion
Locking chats with a secret code can provide an extra level of privacy for FM WhatsApp users. The feature is particularly useful when you want to keep selected conversations away from the main chat list or require additional authentication before opening them.
Because FM WhatsApp versions can differ, the exact menus and secret-code behavior may change. Always test the feature after configuring it and remember your recovery information. For more FM WhatsApp privacy tutorials and guides, fmwapp.net provides practical information for users in 2026.