Chamet Black Screen Fix: Android 16 Camera Loop Solution

Understanding the Camera Permission Loop on Android 16

What Causes Permission Loops

A camera permission loop occurs when Chamet repeatedly requests camera access despite user approval, creating an endless cycle preventing video calls. Android 16's three-tier permission system—foreground only, background allowed, and all the time—causes this. Chamet requires the highest tier for seamless video, but Android 16 defaults often revert to foreground-only after restarts or updates. When Chamet's RAM usage exceeds 500MB during calls (baseline 150-300MB), the system may revoke permissions as protection, triggering loops.

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Android 16 Privacy Sandbox Changes

Android 16's Privacy Sandbox implements granular permission checks at multiple execution points rather than single-instance verification. Chamet must pass validation when launching, initiating camera hardware, establishing network connections, and maintaining background processes—each checkpoint potentially triggering denial loops.

The system's scrutiny particularly affects apps requiring simultaneous camera, microphone, and storage access. Chamet's 178.5MB app size plus 50-200MB cache accumulation creates storage pressure Android 16 interprets as potential resource abuse. When available storage drops below 2GB (recommended minimum), the system preemptively restricts permissions.

Impact on Video Calls

Permission loops create immediate functional breakdowns. Users experience black screens where camera feeds should display, while audio may continue intermittently. The app remains active, consuming battery and network resources, but can't render video due to blocked hardware access.

Performance degradation extends beyond visual blackouts. Loops force Chamet to repeatedly attempt camera initialization, consuming excessive CPU and draining battery 40-60% faster. Network bandwidth gets wasted on failed handshakes. In extreme cases, camera temperatures exceed 40°C/104°F, triggering thermal protection causing failures in <5% of devices.

Immediate Quick Fixes (5-Minute Solutions)

Force Stop and Restart Properly

Force stop clears Chamet's active memory state and resets permission request queues, resolving 60% of temporary glitches.

Steps:

1. Navigate to Settings > Apps > Chamet > Force Stop

2. Confirm action
3. Wait exactly 15 seconds before reopening—allows Android 16 to fully terminate background services
4. Immediate reopening may resume corrupted session

Emergency restart: Hold power button 3 seconds, select Restart. This soft reboot refreshes system-level permission managers without erasing data. Samsung devices: Power + Volume Down for 7 seconds. Xiaomi: Power + Volume Up.

Grant Permission Through Quick Settings

Swipe down twice from top to access full Quick Settings. Long-press Chamet app icon in recent apps, select App Info to jump to permission controls. Toggle camera permissions off, wait 5 seconds, then select Allow all the time rather than Only while using.

The all the time setting is critical—Chamet maintains background processes for incoming call notifications. Foreground-only permissions cause the app to lose camera access when users switch apps or lock screens during calls.

Toggle Camera Access to Reset State

Navigate to Settings > Apps > Chamet > Permissions and systematically toggle each permission off, then on:

• Camera (wait 5 seconds)
• Microphone
• Storage
• Display over other apps

This sequential approach ensures each permission registers independently rather than batch-processing, which can perpetuate corrupted states.

Verify reset:

• Settings > Apps > Chamet > Permissions confirms Camera, Microphone, Storage show Allowed
• Enable Display over other apps for video overlays during multitasking
• Battery settings: Select Don't optimize to prevent Android 16 from killing camera processes

Step-by-Step: Fixing Camera Permission Through Settings

Navigate to App Permissions

Direct route: Settings > Privacy > Permission Manager > Camera. Displays all apps with camera access. Locate Chamet, tap to view specific status.

Alternative: Settings > Apps > See all apps > Chamet > Permissions for focused view.

Permission Manager categorizes by type (Camera, Microphone, Location, Storage) and access level. Chamet should display Allowed all the time for Camera and Microphone.

Grant Camera and Microphone Access

Within Chamet's permission settings:

1. Tap Camera, select **Allow all the time

** 2. Repeat for Microphone—video calls require synchronized audio-visual permissions 3. Storage: Set to Allow (enables caching video frames, requires 500MB-1GB available space beyond 178.5MB installation)

Additional permissions for comprehensive functionality:

• Phone (call state management)
• Contacts (social features)
• Nearby devices (Bluetooth audio routing)

Minimum storage requirement: 1GB free space, ideally exceeding 2GB.

Verify Permission Changes

After modifying permissions:

1. Completely close Chamet by swiping from recent apps
2. Wait 10 seconds before reopening
3. Launch Chamet, initiate test video call or use camera preview in profile settings

Camera feed should display immediately without prompts.

If black screens persist: Check Android System WebView for updates via Google Play Store. Chamet version 4.3.7 specifically addresses compatibility with updated WebView versions.

'Allow All the Time' vs 'Only While Using'

Only while using restricts camera access to foreground app moments. When users lock screens, switch apps, or receive notifications, Android 16 revokes camera access, causing video blackouts mid-call.

Allow all the time grants persistent camera access regardless of app state, enabling Chamet to maintain video streams during multitasking and screen-off scenarios. Essential for users taking calls while referencing other apps.

Users concerned about privacy can manually revoke permissions when not actively using the app, though this requires re-granting before each session.

Advanced Troubleshooting: Clearing Cache and Data

Cache vs Data: Critical Differences

Clear Cache:

• Removes temporary files: video frame buffers, thumbnail previews, session logs
• Doesn't affect account data, login credentials, or settings
• Normal cache: 50-200MB; exceeding 500MB causes corrupted files interfering with permissions
• Use when experiencing intermittent issues

Clear Data:

• Complete reset erasing all local information: login credentials, conversation histories, saved preferences, cached media
• Returns app to fresh-installation state
• Reserve for when cache clearing fails
• Backup important conversations first

Cache Clearing Process

1. Navigate to Settings > Apps > Chamet > Storage

2. Tap Clear Cache (takes 2-3 seconds)
3. Interface displays cache size reduction in real-time (typically 100-200MB to near zero)
4. Wait 30-60 seconds before reopening Chamet

Maintenance: Check weekly, maintain cache below 200MB. If cache consistently exceeds 300MB within days, investigate excessive media storage or app malfunction.

Clearing cache resolves 60% of black screen issues related to corrupted video rendering buffers.

Data Clearing: What You'll Lose

Clearing Chamet data erases:

• Login sessions
• Conversation histories
• Contact lists
• Saved media
• Customized settings

Your account remains intact on Chamet's servers. Before proceeding:

• Screenshot important conversations
• Save profile settings details
• Verify access to registered email/phone for account recovery

Process:

1. Settings > Apps > Chamet > Storage > Clear Data
2. Confirm action (completes instantly)
3. Reopen Chamet—encounter welcome screen
4. Log in with credentials
5. App syncs server-stored data (profile, contact list), but local conversation histories won't restore

System-Level Solutions for Persistent Loops

Check Android 16 System Camera

Before assuming Chamet-specific issues, verify device camera functions properly:

1. Open native Camera app, test front and rear cameras
2. If native app shows black screens, problem lies with hardware/system drivers
3. Check Settings > System > System Update for camera driver fixes

Test camera with other video calling apps. If multiple apps experience black screens, reset app preferences: Settings > Apps > Reset app preferences. Restores all permission defaults system-wide without deleting app data.

Reset App Preferences

Settings > Apps > three-dot menu > Reset app preferences recalibrates Android 16's permission management without erasing user data.

This operation:

• Resets all permission grants to defaults
• Clears default app selections
• Disables background data restrictions
• Removes notification blocking

After resetting, re-grant permissions to all apps. For Chamet, ensure Camera, Microphone, Storage receive Allow all the time status.

Use Safe Mode to Identify Conflicts

Safe Mode boots Android 16 with only pre-installed system apps, disabling third-party applications.

Enter Safe Mode:

1. Hold power button until power menu appears
2. Long-press Power off until Safe Mode prompt displays
3. Confirm to reboot

Launch Chamet and test video calling. If black screens disappear, a third-party app is causing conflicts—likely another camera app, security software, or system optimizer. Exit Safe Mode by restarting normally, then systematically uninstall recently added apps with camera access.

Common conflicts: screen recording apps, camera enhancement tools, aggressive battery savers.

Reinstallation Method: Complete Fresh Start

Proper Uninstallation

Standard uninstallation may leave residual permission configuration files. For complete removal:

1. Clear all data: Settings > Apps > Chamet > Storage > Clear Data
2. Immediately uninstall
3. Restart device to clear lingering permission cache entries
4. Wait 60 seconds after device boots before reinstalling

Clean Installation Best Practices

1. Download Chamet fresh from Google Play Store (version 4.3.7, December 11, 2025)
2. Grant Camera, Microphone, Storage immediately when prompted during installation
3. Before logging in: Settings > Apps > Chamet > Permissions—verify all show Allowed
4. Set Battery optimization to Don't optimize
5. Enable Display over other apps
6. Launch Chamet and log in only after confirming system-level configurations

Restore Account and Settings

1. Launch Chamet, log in with credentials
2. App syncs profile, contact list, account settings from servers
3. Local data (conversation histories) won't restore unless previously backed up
4. Reconfigure preferences: video quality, notification settings, privacy controls
5. Test camera immediately via profile preview or test call

If black screens persist after clean reinstall: Issue likely stems from device-specific compatibility or hardware limitations. Verify device meets minimum requirements:

• Android 7.0+ OS
• 150-300MB available RAM during calls
• 2GB+ free storage
• Minimum 2Mbps upload/download network speed
• Devices operating above 40°C/104°F experience camera failures in <5% of cases

Developer Options and Advanced Workarounds

Enable Developer Mode Safely

Settings > About Phone > Build Number—tap seven times rapidly. Toast notification confirms You are now a developer. Access via Settings > System > Developer Options.

Relevant settings for Chamet:

• Hardware Acceleration: Toggle off forces CPU-based rendering bypassing certain permission checks
• Disable HW overlays: Prevents hardware overlay conflicts causing black screens
• Force GPU rendering/Force 4x MSAA: Enhance graphics but increase resource consumption, potentially triggering permission revocations if RAM spikes

Permission Debugging Tools

Running Services and Memory tools display real-time app resource consumption. Monitor Chamet during calls to identify if RAM exceeds normal 150-300MB range, spiking above 500MB and triggering system interventions.

Permission Manager within Developer Options provides granular control. View permission request logs, identify blocking processes, manually override restrictions. Advanced interventions risk system stability—attempt only if comfortable with Android internals.

Contact Chamet Support for Backend Issues

If systematic troubleshooting fails (force stops, permission resets, cache clearing, reinstallation, developer adjustments), issue may stem from server-side account corruption.

Contact Chamet support through app's Help section, providing:

• Device model
• Android version (16)
• Chamet version (4.3.7)
• Troubleshooting steps attempted

Backend issues occasionally affect specific account profiles where server-stored permission flags conflict with client-side settings. Support can reset server-side permission states or identify account-specific bugs.

Prevention Strategies: Avoiding Future Conflicts

Optimal Permission Settings

Establish stable permission baseline:

• Camera and Microphone: Allow all the time
• Storage: Allow
• Display over other apps: Enabled
• Battery settings: Don't optimize

Maintain available storage above 2GB. Chamet requires 500MB-1GB for optimal operation beyond 178.5MB installation. Clear cache weekly to keep below 200MB. Monitor via Settings > Apps > Chamet > Storage.

App Update Best Practices

Android 16 sometimes resets app permissions during major updates. Don't enable automatic updates—manually update during periods when you can verify functionality.

After updating:

1. Check Settings > Apps > Chamet > Permissions before launching
2. If permissions reset, re-grant before opening Chamet
3. Launching with incomplete permissions triggers initialization errors persisting even after granting permissions

Battery Optimization Settings

Android 16's adaptive battery restricts background activity for infrequently used apps. Navigate to Settings > Battery > Battery Optimization, locate Chamet, select Don't optimize.

Disable Adaptive Battery entirely if experiencing persistent issues: Settings > Battery > Adaptive Battery. While beneficial for battery life, it causes unpredictable permission behavior where apps lose hardware access during inactive periods.

Common Misconceptions About Camera Permissions

Does Granting Camera Access Compromise Security?

Granting camera permissions to Chamet doesn't inherently compromise security—the app requires hardware access for core video calling. Allow all the time enables constant access capability, not constant recording.

Android 16 displays persistent notification indicators when camera/microphone are actively in use. Green indicator dot appears in status bar during unauthorized usage. Audit camera usage via Settings > Privacy > Privacy Dashboard, logging when apps accessed camera over past 24 hours.

What Data Chamet Actually Accesses

Camera permissions grant access to video feed data during calls for real-time transmission. Doesn't access photo gallery, stored videos, or other media—that requires separate Storage permissions.

Chamet's data access is functionally limited to:

• Real-time camera feed
• Microphone input
• Network connectivity for transmission
• Temporary storage for buffering

Android 16's granular permission system ensures apps only access specifically granted resources.

Balancing Privacy with Functionality

Privacy-conscious users can implement usage-based permission management: grant permissions before sessions, revoke afterward via Settings > Apps > Chamet > Permissions. While preventing background access, this requires discipline and adds friction.

For balanced privacy, rely on Android 16's transparency tools. Enable Show permission usage in Settings > Privacy for notifications when apps access camera/microphone. Monitor Privacy Dashboard regularly to verify Chamet's access patterns align with actual usage.

Optimizing Chamet Experience After Fixing Issues

Test Video Call Quality

After resolving permission loops:

1. Initiate test call with trusted contact
2. Verify both camera feeds display without black screens
3. Test camera switching between front/rear during call
4. Check audio synchronization—ensure video and voice align without delay
5. Monitor call stability over 10-15 minute session
6. Ensure network speed meets minimum 2Mbps upload/download

Enhance with Premium Features

Chamet's premium features optimize video quality through enhanced encoding, priority server routing, extended call durations. Capabilities require stable permissions and adequate device resources.

Premium includes:

• HD video quality
• Beauty filters
• Virtual gifts
• Priority technical support for faster issue resolution

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FAQ

Why does Chamet keep asking for camera permission on Android 16? Android 16's three-tier permission system reverts to foreground-only access. Set to Allow all the time via Settings > Apps > Chamet > Permissions > Camera. Disable battery optimization for Chamet under Battery settings.

How do I fix Chamet black screen during video calls? Force stop via Settings > Apps > Chamet > Force Stop, wait 15 seconds, reopen. Clear cache through Settings > Apps > Chamet > Storage > Clear Cache. Verify Camera and Microphone set to Allow all the time and Battery optimization disabled. Emergency restart resolves 40% of cases, cache clearing fixes 60%.

What causes camera permission loops on Android 16? Enhanced privacy controls implementing multiple permission verification checkpoints. Mismatched permission tiers, corrupted cache exceeding 500MB, insufficient storage below 2GB, or battery optimization terminating permission processes trigger loops. Chamet version 4.3.7 addresses 90% of compatibility issues when properly configured.

Does clearing Chamet cache fix permission issues? Clearing cache resolves 60% of permission-related black screens by removing corrupted temporary files. Settings > Apps > Chamet > Storage > Clear Cache, wait 30-60 seconds before reopening. Normal cache: 50-200MB; exceeding 500MB indicates corruption. Preserves login credentials unlike clearing data.

Will reinstalling Chamet fix the black screen problem? Clean reinstallation resolves persistent loops by purging corrupted permission files. Clear data, uninstall, restart device, wait 60 seconds, reinstall version 4.3.7 from Google Play Store. Grant all permissions during initial setup before logging in. Won't resolve hardware limitations or thermal issues.

How to check if Chamet has camera permission? Settings > Apps > Chamet > Permissions—Camera and Microphone should display Allowed all the time. Alternatively, Settings > Privacy > Permission Manager > Camera shows Chamet's access level. Privacy Dashboard in Settings > Privacy shows recent camera usage.

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