How to Lock Chats in GB WhatsApp: Complete Guide

Important: GB WhatsApp is an unofficial modified version of WhatsApp. Chat Lock, Hide Chat, Secret Code, authentication methods, menu names, and notification behavior can vary between builds. Use the instructions below as general guidance and verify the options available in your installed version.

How to Lock Chats in GB WhatsApp

GB WhatsApp may offer privacy features that let users protect individual conversations from casual access. Depending on the build, these options can include Chat Lock, Hide Chat, fingerprint protection, PIN/password protection, and Secret Code.

These features are not necessarily the same. Chat Lock can add authentication to a conversation, while Hide Chat may conceal a conversation from the normal chat list. App Lock, meanwhile, protects access to the entire application.

This guide explains how to lock and hide chats, how to unlock them, how fingerprint and password protection work, how notifications can expose private information, what happens after updates or reinstallations, and how to troubleshoot common problems.

Chat Lock vs Hide Chat vs App Lock

FeatureWhat It ProtectsMain Purpose
Chat Lock	Selected conversation	Protect individual chats
Hide Chat	Conversation visibility	Conceal chats from the normal list
Secret Code	Hidden-chat access	Find/access hidden chats where supported
App Lock	Entire application	Prevent unauthorized app access
Fingerprint Lock	App/chat authentication	Authenticate using fingerprint
PIN/Password	App/chat authentication	Authenticate using a code or password
Archive	Chat organization	Remove chats from the main list without being a security feature

Practical Scenario 1: One Private Conversation

You have one particularly private conversation and don't want everyone using your phone to open it.

Chat Lock may be more appropriate.

Practical Scenario 2: Several Conversations

You want selected conversations to disappear from the normal chat list.

A Hide Chat feature may be more appropriate if supported.

Practical Scenario 3: Entire WhatsApp Account

You want nobody to open GB WhatsApp without authentication.

An App Lock provides broader protection.

How to Lock a Chat in GB WhatsApp

The exact menu depends on your GB WhatsApp build, but the general process is:

Step 1: Open GB WhatsApp

Launch GB WhatsApp on your Android phone.

Step 2: Open the Conversation

Find the individual or group conversation you want to protect.

Step 3: Open Chat Options

Depending on the build, long-press the conversation or open its chat information/options menu.

Step 4: Find Chat Lock

Look for an option such as:

Chat Lock
Lock Chat
Privacy Lock
Lock Conversation

Step 5: Select Authentication

Your build may ask you to use:

Fingerprint
PIN
Password
Pattern
Another supported authentication method

Step 6: Confirm the Lock

Complete the authentication setup and confirm the conversation lock.

Step 7: Test the Locked Chat

Close the conversation and try opening it again.

Confirm that the required authentication is requested.

How to Lock a Chat With Fingerprint

If fingerprint authentication is supported by your phone and build, you can use it as an authentication method.

Step 1

Open GB WhatsApp.

Step 2

Open the privacy or security settings.

Step 3

Find Chat Lock or the applicable lock setting.

Step 4

Select Fingerprint if available.

Step 5

Confirm your device fingerprint.

Step 6

Select the conversation you want to protect.

Step 7

Test the locked conversation by closing and reopening it.

Fingerprint functionality depends on your Android device and the implementation in your GB WhatsApp build.

How to Lock a Chat With a PIN or Password

If fingerprint authentication isn't available, your build may provide another authentication method.

Step 1

Open GB WhatsApp.

Step 2

Go to Privacy or Security settings.

Step 3

Open Chat Lock or the relevant privacy feature.

Step 4

Choose PIN or Password if available.

Step 5

Create a strong authentication code.

Step 6

Confirm the PIN or password.

Step 7

Apply the lock to the selected conversation and test it.

Don't use an easily guessed PIN such as a birthday or repeated digits.

How to Hide a Chat in GB WhatsApp

Some GB WhatsApp builds provide a separate Hide Chat feature.

Step 1

Open GB WhatsApp.

Step 2

Find the conversation you want to hide.

Step 3

Long-press the conversation or open its options.

Step 4

Look for Hide Chat or a similar option.

Step 5

Select the available authentication method.

Step 6

Confirm that you want to hide the conversation.

Step 7

Return to the normal chat list and verify whether the conversation is concealed.

The exact hiding mechanism varies considerably between modified builds.

How to Unlock a Locked Chat

If you previously locked a conversation:

Step 1

Open GB WhatsApp.

Step 2

Access the locked-chat area.

Step 3

Authenticate using your configured method.

Step 4

Find the conversation.

Step 5

Open its chat options.

Step 6

Select the available unlock option.

Step 7

Confirm the change.

The conversation should return to the normal chat area if the build supports that behavior.

How to Unhide a Hidden Chat

If you used Hide Chat:

Step 1

Open GB WhatsApp.

Step 2

Access the hidden-chat area.

Step 3

Enter your PIN, password, Secret Code, or other authentication method.

Step 4

Find the hidden conversation.

Step 5

Open the conversation options.

Step 6

Select Unhide Chat or the equivalent option.

Step 7

Confirm the change and check the normal chat list.

If the option isn't available, the hidden-chat mechanism in your build may work differently.

Chat Lock vs Hide Chat

FeatureChat LockHide Chat
Protects conversation	Yes	May
Conceals chat from list	Build-dependent	Main purpose
Authentication	Often available	May be required
Access method	Locked-chat area	Hidden-chat area
Search visibility	Build-dependent	Build-dependent
Notifications	Build-dependent	Build-dependent
Available in every build	No	No

Example

A locked chat may remain visible in some interface while requiring authentication to open.

A hidden chat may not appear in the normal chat list at all.

Therefore, locking and hiding should not automatically be treated as identical features.

What Is a Secret Code for Hidden Chats?

Some chat-privacy systems use a Secret Code to provide another way to access hidden conversations.

Where supported, a user may enter the configured code through an appropriate search or access mechanism to reveal the hidden-chat area.

However, Secret Code functionality is not guaranteed to be available or implemented identically in every GB WhatsApp build.

Secret Code vs Chat Lock

FeatureSecret CodeChat Lock
Main purpose	Access hidden chats	Protect selected chats
Requires code	Where supported	Depends on authentication method
Hides chat	May	Not necessarily
Authentication	Code-based	PIN, password, fingerprint, etc.
Build-dependent	Yes	Yes

Practical Scenario 1

You want a conversation to remain hidden from the regular chat list.

A supported Secret Code system may be useful.

Practical Scenario 2

You don't need the chat hidden but want authentication before opening it.

Chat Lock may be more suitable.

Practical Scenario 3

You want to protect the whole application.

App Lock is broader than either feature.

Can You Lock Chats Without Fingerprint?

Yes, where your GB WhatsApp build provides alternative authentication methods.

Depending on the device and build, alternatives may include:

PIN
Password
Pattern
Other authentication methods

MethodMain Benefit
Fingerprint	Fast biometric authentication
PIN	Simple code-based access
Password	More flexible authentication
Pattern	Available on some implementations

Not every build provides every option.

What Happens if You Forget Your PIN, Password, or Secret Code?

The recovery process depends on how the feature was implemented.

AuthenticationPossible Recovery
Fingerprint	Use another configured method if available
PIN	Use supported recovery method
Password	Use supported recovery method
Secret Code	Use the configured recovery/access method
No recovery option	Access may be difficult or unavailable

If fingerprint authentication fails, try the alternative authentication method if your build provides one.

Avoid downloading unknown “unlock” tools or modified utilities that claim to bypass chat protection. They can create additional security and privacy risks.

Chat Lock for Individual vs Group Chats

Chat TypeLock Support
Individual chat	Often supported where Chat Lock exists
Group chat	Build-dependent
Archived chat	Separate organization feature
Hidden chat	Depends on Hide Chat implementation

Scenario 1: Private Individual Chat

You lock a one-to-one conversation.

The lock is intended to restrict access to that specific conversation.

Scenario 2: Private Group

You want to protect a group containing sensitive messages.

Check whether your particular build supports locking that group.

Scenario 3: Archived Conversation

You archive a conversation.

Archiving alone should not be treated as equivalent to security protection.

Can You Lock Multiple Chats at Once?

Some builds may provide multi-selection or bulk locking, but this should not be assumed to exist in every GB WhatsApp version.

If your build supports bulk locking:

Step 1

Open the chat list.

Step 2

Long-press a conversation.

Step 3

Select additional conversations.

Step 4

Open the available chat options.

Step 5

Choose Chat Lock.

Step 6

Authenticate.

Step 7

Verify each selected conversation.

If bulk locking is unavailable, lock conversations individually.

Individual Locking vs Bulk Locking

FeatureIndividualBulk
One chat at a time	Yes	No
Multiple chats	No	Where supported
Easier for a few chats	Yes	Not necessary
Faster for many chats	No	Yes
Available in every build	No guarantee	No guarantee

How to Lock a Chat Without Hiding It

If your build separates Chat Lock from Hide Chat, you may be able to protect a conversation without removing it from the normal chat list.

The concept is:

Visible chat + authentication required

rather than:

Hidden chat + special access method

Whether this is possible depends on your build.

Scenario 1

You want the conversation visible but protected.

Use Chat Lock if supported separately.

Scenario 2

You want the conversation removed from normal view.

Use Hide Chat if supported.

Scenario 3

You want the whole app protected.

Use App Lock.

Can Locked Chats Be Found in Search?

Search behavior is build-dependent.

A locked conversation may behave differently from a hidden conversation.

FeatureSearch Visibility
Normal chat	Usually searchable
Locked chat	Build-dependent
Hidden chat	Build-dependent
Secret Code	May provide separate access
Archived chat	Search behavior differs from hiding

Don't assume that Chat Lock automatically removes every reference to a conversation from search.

Can Locked or Hidden Chats Appear in Recent Apps?

Chat privacy and Android's recent-apps screen are separate layers.

A locked conversation may be protected inside GB WhatsApp while the application itself remains visible in Android's recent-apps interface.

Scenario 1

You lock one chat.

The chat may require authentication, but GB WhatsApp can still appear in Recent Apps.

Scenario 2

You hide a chat.

The conversation may be concealed while the application remains visible.

Scenario 3

You use App Lock.

Opening the application can require authentication, providing broader protection.

The exact result depends on Android and the installed GB WhatsApp build.

Can Locked Chats Appear in Notifications?

Yes, depending on the notification configuration and build.

Chat protection does not necessarily mean that Android will hide every notification detail.

Possible information includes:

Sender name
Message preview
Message content
Unread count
Notification title

ProtectionNotification Privacy
Chat Lock	Build-dependent
Hide Chat	Build-dependent
App Lock	Doesn't automatically control all Android previews
Android notification settings	System-level control

For sensitive conversations, review Android's notification settings separately.

How to Hide Notifications for Locked or Hidden Chats

Android controls can provide an additional layer of notification privacy.

Step 1

Open Android Settings.

Step 2

Open Notifications.

Step 3

Find the GB WhatsApp notification settings.

Step 4

Review notification categories.

Step 5

Disable or limit message previews where available.

Step 6

Open Android's lock-screen notification settings.

Step 7

Test notifications while the phone is locked.

The exact settings depend on your Android version and device manufacturer.

How to Prevent Message Content From Appearing on the Lock Screen

Chat protection inside GB WhatsApp and lock-screen protection in Android are different.

A general Android process is:

Open Settings.
Open Notifications.
Find GB WhatsApp.
Review its notification settings.
Disable or limit message previews where available.
Review lock-screen notification privacy.
Lock your phone and send a test message.

Practical Scenario 1

Your chat is locked, but the message preview appears on the lock screen.

You need to adjust Android notification privacy.

Practical Scenario 2

The sender name appears but the message content is hidden.

Your notification preview settings may already provide partial protection.

Practical Scenario 3

Nothing appears on the lock screen.

Your notification privacy configuration may already be sufficient.

What Happens When You Archive a Locked Chat?

Archive and Chat Lock serve different purposes.

FeatureArchiveChat LockHide Chat
Organizes chat list	Yes	Not primary purpose	May
Security feature	No	Yes, where supported	Privacy-focused
Authentication	No	May	May
Hides from normal list	Yes, depending on behavior	Build-dependent	Main purpose
Notification control	Separate	Build-dependent	Build-dependent

Archiving should not be considered a replacement for Chat Lock.

Chat Lock vs App Lock: Which Should You Use?

Use Chat Lock When:

You only want to protect selected conversations.

Use App Lock When:

You want to prevent unauthorized access to the entire GB WhatsApp application.

Use Both When:

Your build supports both and you want application-level protection plus additional protection for particularly private conversations.

NeedRecommended Approach
Protect one chat	Chat Lock
Hide selected chats	Hide Chat
Protect entire app	App Lock
Hide and separately protect chats	Chat Lock + Hide Chat where supported
Protect notifications	Android notification settings

What Happens to Locked Chats After Updating GB WhatsApp?

After an update, verify your privacy settings instead of assuming everything remains unchanged.

7-Step Checklist

Check Chat Lock status.
Check Hidden Chat status.
Verify your PIN/password.
Test fingerprint authentication.
Verify Secret Code.
Check notification privacy.
Open and test locked/hidden chat access.

An update can change menu locations, feature availability, or behavior.

What Happens After Reinstalling GB WhatsApp?

Chat restoration and privacy-setting restoration are not necessarily the same thing.

After reinstalling, check:

Chat backup availability.
Chat Lock status.
Hidden Chat status.
PIN/password.
Fingerprint authentication.
Secret Code.
Notification privacy.
Access to previously locked or hidden conversations.

Do not assume that restoring a chat backup automatically restores every privacy and authentication preference.

For related information, see GB WhatsApp Backup and Restore.

What Happens After Changing Phones?

When moving GB WhatsApp to another phone, verify your privacy configuration manually.

Checklist

Restore your available chat backup.
Check Chat Lock.
Check Hidden Chats.
Verify PIN/password.
Set up fingerprint authentication again if necessary.
Check Secret Code.
Review notification privacy.
Test access to protected conversations.

Biometric authentication is linked to the device, so moving to another phone may require setting it up again.

Why Is Chat Lock Not Working?

1. Chat Lock Option Disappeared

The current build may have changed the menu.

Fix: Search Privacy or Security settings.

2. Locked Chat Is Visible Again

The lock may have been disabled or changed after an update.

Fix: Review the conversation's lock status.

3. Fingerprint Authentication Fails

The device fingerprint system may have changed or failed.

Fix: Check Android biometric settings and use an alternative authentication method if available.

4. PIN or Password Doesn't Work

The configured authentication may have been changed.

Fix: Use the supported recovery method rather than repeatedly guessing.

5. Secret Code Doesn't Find Hidden Chats

The code may be incorrect or the build may handle hidden chats differently.

Fix: Review the current hidden-chat settings.

6. Notifications Still Reveal Information

Android may still display message previews.

Fix: Adjust Android notification settings.

7. Behavior Changed After an Update

A new build may change privacy functionality.

Fix: Review all privacy settings after updating.

Common Chat Lock Mistakes

1. Treating Archive as Security

Archive is primarily an organization feature.

2. Confusing Hide Chat With Chat Lock

Hiding and locking can have different purposes.

3. Using a Weak PIN

Avoid easily guessed codes.

Anyone who knows your access code may be able to access hidden chats where that mechanism is used.

5. Ignoring Notifications

A locked chat can still expose information through notifications depending on settings.

6. Not Testing After Updates

Privacy settings can change.

7. Assuming Chat Lock Protects the Entire App

Chat Lock is different from App Lock.

Can Locked Chats Be Completely Private?

No privacy feature should be treated as a guarantee of complete privacy.

Chat Lock can restrict access to a conversation, but other parts of the device may still expose information.

Consider:

Lock-screen notifications
Recent Apps
Screenshots
Backups
Device access
Application permissions
Other installed software

The exact level of protection depends on your device, Android configuration, and GB WhatsApp build.

10 Chat Privacy and Security Tips

Use a strong PIN or password.
Don't share your Secret Code.
Use fingerprint protection where appropriate.
Hide notification previews for sensitive conversations.
Don't rely on Archive as a security feature.
Test locked and hidden chats after configuring them.
Recheck Chat Lock after updates.
Recheck privacy settings after reinstalling.
Recheck authentication after changing phones.
Remember that Chat Lock protects conversations locally but does not make an unofficial GB WhatsApp build inherently secure.

Frequently Asked Questions

How do I lock a chat in GB WhatsApp?

Open the conversation or its options, find the available Chat Lock or Lock Chat feature, select an authentication method, and confirm the lock. The exact steps vary between GB WhatsApp builds.

Can I hide a chat instead of locking it?

Some GB WhatsApp builds provide a separate Hide Chat option. Hide Chat and Chat Lock should be treated as separate features because their behavior can differ.

Can I lock chats without fingerprint?

Yes, where your build provides alternatives such as a PIN or password. Available authentication methods depend on your device and GB WhatsApp build.

Can I lock multiple chats at once?

Some builds may support bulk chat selection and locking, but this feature should not be assumed to exist in every version. If bulk locking isn't available, lock chats individually.

Can locked chats still show notifications?

They may, depending on the build and Android notification settings. Review lock-screen and notification-preview settings separately for stronger notification privacy.

Final Verdict

Chat Lock and Hide Chat can provide useful local privacy controls in GB WhatsApp, but they are not necessarily the same feature.

Use Chat Lock when you want to protect selected conversations, Hide Chat when you want supported conversations concealed from the normal chat list, and App Lock when you want to protect access to the entire application.

Fingerprint, PIN, password, and Secret Code options can provide different authentication methods, but availability varies between builds. After updating, reinstalling, or changing phones, always verify your protected chats, authentication settings, hidden-chat access, and notification privacy.

Most importantly, locking a conversation does not guarantee complete device or application security. Android notifications, backups, recent-apps behavior, device access, and the security of the unofficial GB WhatsApp build itself should also be considered.

Explore More GB WhatsApp Privacy Guides

GB WhatsApp Privacy Features
How to Hide Online Status in GB WhatsApp
Freeze or Hide Last Seen in GB WhatsApp
How to Hide Blue Ticks in GB WhatsApp
How to Hide Typing and Recording
How to Hide Status Views
GB WhatsApp App Lock
GB WhatsApp Backup and Restore
How to Update GB WhatsApp
Is GB WhatsApp Safe?

For more practical guidance, see GB WhatsApp App Lock and Chat Lock Guide, and How to Lock GB WhatsApp With Fingerprint, PIN, or Password.

GBAppz Editorial Team

The GBAppz Editorial Team publishes practical guides covering GB WhatsApp privacy, features, installation, updates, backup and restore, customization, old versions, and troubleshooting.

This guide explains Chat Lock and Hidden Chat concepts in simple language while distinguishing build-dependent features from general Android privacy controls.

GBAppz is not affiliated with or officially endorsed by WhatsApp or Meta.