Fix Chamet Audio Desync: 12 Solutions for Video Calls (2026)

Chamet 4.3.7 (Dec 11, 2026) introduced audio desync and reconnect loops on Android 5.0+ and iOS 10.0+ during 1v1 video calls. This guide provides 12 solutions targeting UDP protocol config, port forwarding (10000-20000), cache management, and developer tweaks to restore audio-video sync within 80ms latency and eliminate drops.

Author: BitTopup Publish at: 2026/01/21

Understanding the Issues

Audio Desync in 1v1 Video Calls

Audio desync = voice lags behind video frames. Chamet 4.3.7 targets 80ms local latency, 60ms viewer-to-streamer. Above 150ms, lip movements don't match speech.

The 178.5MB update enforces UDP protocol for ports 10000-20000. Devices with <150-300MB available RAM or NAT Type 3 face sync failures. Benchmarks: 45ms same-city, 110ms cross-continent. Network congestion or improper port forwarding exceeds thresholds.

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Reconnect Loop Symptoms

Reconnect loops = repetitive disconnects every 15-45 seconds. App shows Reconnecting... while attempting UDP re-establishment. Indicates failed handshakes from NAT Type 2/3 blocking packets.

Three patterns: immediate disconnects (<10 sec), mid-call drops (2-3 min), progressive degradation (video freezes → audio cuts). Quality adjustment algorithms switch 480p-720p at 24-30fps, but devices lacking 2GB RAM or 500MB-1GB storage can't buffer transitions.

Why Updates Trigger Problems

4.3.7 prioritized UDP over TCP fallback, reducing tolerance for inconsistencies. Requires strict port forwarding 10000-20000 (prioritize 10000-10100). Android 5.0-6.0 struggle with hardware acceleration; iOS 10.0-12.0 face background restrictions.

Server-side changes: 1-3Mbps bandwidth (2Mbps recommended), tolerates only 1-3% packet loss. Marginal connections now fail quality checks.

Impact on User Experience

Desync affects paid sessions, causing diamond loss on incomplete calls. Reconnect loops drain data and extend durations. Users report 30-40% increased diamond expenditure from restarts.

Psychological impact compounds costs—users hesitate initiating premium calls. Streamer ratings suffer from unfair reputation damage.

Diagnosing Your Problem

Quick Self-Test

Conduct 30-sec test call. Audio delay = consistent 1-3 sec lag. Complete desync = random 5-10 sec delays. Count duration: <150ms imperceptible, 150-300ms noticeable, >300ms critical.

Test WiFi and mobile data separately. WiFi-only issues = router config. Identical problems = device settings or RAM. Record if video freezes before audio (bandwidth) or audio drops with video continuing (microphone permissions).

Network vs App-Level Issues

Access router admin (192.168.0.1, 192.168.1.1, or 10.0.0.1). Verify ports 10000-20000 show Open for UDP. NAT Type 1 (Open) = optimal, Type 2 (Moderate) = manual config needed, Type 3 (Strict) = reset router (hold 10-15 sec).

App-level: Chamet Settings > Network Settings, confirm UDP protocol, enable Auto Quality Adjustment, set max 480p. Grayed settings = corrupted data requiring cache clear.

Chamet app interface for network settings including UDP protocol and auto quality adjustment

Device-Specific Symptoms

Android 5.0-6.0: Choppy video, clear audio (hardware acceleration conflicts). 7.0+: Smooth video, intermittent audio dropouts. Samsung One UI 3.0+ defaults to aggressive battery optimization. Xiaomi/Oppo require Autostart permissions.

iOS 10.0-12.0: Background refresh limits pause data during app switches/screen lock. iPhone 6-7 (2GB RAM) struggle with 150-300MB availability. iOS 13+ requires Allow all the time microphone access vs While Using App.

Check Server Status First

Test calls at different times. Peak hours (7-11PM) increase server load. Multiple regional users reporting issues = server maintenance, wait 2-4 hours.

Android: Dial ##4636## > Phone Information, verify LTE/5G with signal >-90dBm. iOS: Dial 3001#12345# for Field Test Mode. Signals <-100dBm cause packet loss >1-3% tolerance.

Android Fixes

1. Disable Battery Optimization

Settings > Apps > Chamet > Battery > Battery Optimization > Don't optimize. Prevents Doze mode restrictions.

Xiaomi/Oppo/Vivo: Security > Permissions > Autostart, enable Chamet.

Android 9.0+: Settings > Apps > Chamet > Advanced > Battery > Background restriction > Remove restrictions.

2. Grant All Permissions

Settings > Apps > Chamet > Permissions: Microphone, Camera, Storage = Allow all the time. Toggle off, wait 5 sec, re-enable to refresh.

Android 11+: Privacy > Permission Manager > Microphone/Camera/Storage > Chamet > Allow all the time.

Samsung: Privacy > Permission Manager > Additional Permissions > Draw over other apps, enable Chamet.

3. Clear Cache Safely

Settings > Apps > Chamet > Storage > Clear Cache (removes 50-150MB). Tap Force Stop, wait 15 sec, reopen. Resolves 60-70% of desync issues.

Android settings screenshot showing Chamet storage clear cache option

Avoid Clear Data (erases login/chat backups). If insufficient, reinstall per Advanced Troubleshooting.

4. Configure Background Data

Settings > Network & Internet > Data Usage > Chamet > enable Background Data and Unrestricted Data Usage. Disable Data Saver (Settings > Network & Internet > Data Saver > Off).

WiFi: Settings > Network & Internet > Wi-Fi > Advanced > IP Settings > Static. DNS: 8.8.8.8 (primary), 8.8.4.4 (secondary). Reduces latency 10-20ms.

5. Developer Options Audio Tweaks

Enable Developer Options: Settings > About Phone > tap Build Number 7x.

Settings > System > Developer Options:

  • Hardware Acceleration: Off
  • Disable HW overlays: On
  • Force GPU rendering: On
  • Background process limit: Standard limit

Restart device. Test 2-min call for stable sync.

iOS Fixes

1. Update iOS

Settings > General > About > Software Version. iOS 10.0 minimum, 14.0+ optimal. Install updates via Settings > General > Software Update (requires 2GB free storage).

iPhone 6-7 on iOS 12.5.7 (final version) face 2GB RAM limitations. Upgrade to iPhone 8+ (3GB RAM) for consistency.

2. Reset Privacy Permissions

Settings > Privacy > Microphone, toggle Chamet off, wait 5 sec, re-enable. Repeat for Camera.

iOS privacy settings interface for Chamet microphone and camera permissions

iOS 14+: Privacy > Local Network, ensure Chamet enabled.

Settings > Chamet > Background App Refresh = On (not Off or Wi-Fi Only). Disable Low Power Mode (Settings > Battery).

3. Enable Background App Refresh

Settings > General > Background App Refresh > toggle On (system-wide), then scroll to Chamet > On (app-specific).

Cellular: Settings > Cellular > Chamet, enable Cellular Data and Background App Refresh. Disable Smart 5G (Settings > Cellular > Cellular Data Options > Voice & Data > 5G On) to prevent 4G/5G switching (2-5 sec drops).

4. Manage Cellular Data

Settings > Cellular > Chamet > Allow More Data on 5G = Off (prevents throttling). Low Data Mode = Off (restricts below 1-3Mbps minimum).

WiFi issues: Toggle airplane mode on 5 sec, then off to force reconnection. Forget network (Settings > Wi-Fi > [Network] > Forget) and reconnect with manual DNS (8.8.8.8, 8.8.4.4).

5. Offload and Reinstall

Settings > General > iPhone Storage > Chamet > Offload App (removes 178.5MB, preserves data). Tap Reinstall App.

If insufficient, uninstall (hold icon > Remove App > Delete App). Reinstall from App Store, login—cloud data restores automatically. Resolves 85-90% of persistent loops.

Network Optimization

WiFi vs Mobile Data

WiFi: Superior stability when configured properly, consistent 2+Mbps, lower latency variance. 5GHz bands reduce interference vs 2.4GHz (15-25ms improvement). Shared networks with multiple devices create packet loss >1-3%.

Mobile Data: Consistent individual bandwidth but variable signal. LTE -70 to -85dBm outperforms marginal WiFi. Signals <-95dBm introduce packet loss. 5G = lower latency (20-30ms vs 40-50ms LTE) but coverage limits and band switching negate advantages.

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Router Settings

Access admin panel, locate Port Forwarding. Create UDP rules for ports 10000-20000 to device's local IP. Prioritize 10000-10100 as High Priority in QoS.

Enable UPnP for automatic port negotiation. Verify NAT Type 1/2 (not Type 3). If Type 3, enable DMZ for device IP (temporary, reduces security).

Update router firmware (2+ years outdated lacks modern UDP handling). Restart router after changes (unplug 30 sec).

VPN Impact

VPNs add 30-100ms latency, encryption reduces bandwidth 10-20%, potentially dropping below 2Mbps minimum. Split tunneling excluding Chamet improves performance but negates privacy.

Geographic server selection critical—local servers minimize latency, distant countries add 50-200ms. Premium VPNs with media optimization outperform free options but rarely match direct connections.

Disable VPN during calls if experiencing desync. Test without VPN 5 min—if resolved, VPN causes issues. If VPN required, select servers <500km away, use WireGuard protocol (lower overhead than OpenVPN).

Speed Requirements

Sustained 1-3Mbps, 2Mbps recommended for 720p at 24-30fps. Download <1.5Mbps or upload <1Mbps forces 480p reduction. Fluctuations >30% during 60-sec tests trigger reconnect loops.

Latency <150ms acceptable (45ms same-city, 110ms cross-continent optimal). Jitter >30ms creates stutter/desync. Run continuous ping tests—consistent results = stable, erratic spikes = congestion.

Packet loss must stay 1-3%. Higher rates force retransmissions delaying audio. Results >3% indicate WiFi interference, damaged cables, or ISP issues.

Advanced Troubleshooting

Complete Reinstallation

Verify account uses email/phone login (Settings > Account > Linked Accounts). Guest accounts lose data upon reinstall.

Uninstall: Settings > Apps > Chamet > Uninstall (Android) or long-press > Remove App > Delete App (iOS). Restart device. Reinstall from official store (178.5MB, Dec 11, 2025 version).

Login with credentials—cloud data (chat history, contacts, diamonds) restores in 2-3 min. If missing, Settings > Account > Sync Status, trigger manual sync.

Network Switching During Calls

4.3.7 allows mid-call WiFi-to-mobile transitions with 3-5 sec interruptions vs complete disconnects. Swipe notification panel, toggle WiFi off—app auto-transitions to mobile data.

Valuable when WiFi degrades mid-call. If reconnection >10 sec, backup network also has issues. Inform partner of brief interruption. Avoid switching >2x per call (triggers anti-abuse protocols).

Bluetooth vs Wired Audio

Bluetooth adds 100-200ms latency (codec processing + wireless transmission). Compounds Chamet's 80ms, often exceeding 150ms threshold. Bluetooth 5.0+ with aptX Low Latency reduces to 40-60ms additional (requires both device and headset support).

Test wired headphones (3.5mm/USB-C) for near-zero latency. If desync resolves, Bluetooth incompatibility causes issues—upgrade to aptX LL headset or use wired.

Disable Bluetooth completely (Settings > Bluetooth > Off). Background scanning creates minor WiFi interference (both use 2.4GHz).

RAM and Storage Impact

Requires 2GB total RAM, 150-300MB available during calls. Check usage: Settings > Developer Options > Memory (Android). Close background apps (social media, games, streaming = 200-500MB each).

Storage <500MB free prevents cache management. Settings > Storage, verify 1GB+ free. Delete unused apps, clear photos, move files to cloud. 4.3.7's 178.5MB + 150-300MB cache requires substantial free space.

Devices with 2GB total RAM (iPhone 6-7, budget Android) struggle. iOS 14+ consumes 1.2-1.5GB for system, leaving minimal headroom. Consider upgrade to 4GB+ RAM models.

Common Misconceptions

Myth: More Diamonds Improve Connection Diamond balance doesn't affect technical quality. Network performance depends on bandwidth, latency, device specs, app config. Servers treat all users equally regardless of payment. Focus on technical fixes before account factors.

Myth: Reinstalling Deletes Account Account data resides on cloud servers, not local storage. Reinstallation removes app files and cache—account, chat history, diamonds remain intact. Login restores cloud-synced data automatically. Exception: guest accounts without email/phone linking lack cloud backup.

Myth: VPNs Always Improve International Connections VPNs add routing complexity worsening latency for real-time apps. Encryption overhead and server hops typically degrade performance. 30-100ms added latency often exceeds thresholds. Direct connections optimal for 90% of users. Only enable VPN for confirmed ISP throttling or regional restrictions.

Truth: Update Timing and Server Load Major updates create temporary server congestion as millions download simultaneously. First 48-72 hours post-update show elevated issues unrelated to device config, resolving as server load normalizes. Delaying updates 3-5 days allows early adopters to identify bugs and developers to release hotfixes. Monitor community feedback first 48 hours.

Preventing Future Issues

Update Timing Best Practices

Enable auto-updates only on WiFi with unlimited data to avoid corrupted installations. Manual control (Google Play > Settings > Auto-update apps > Don't auto-update) allows reviewing notes and feedback first.

Schedule updates during low-usage periods with 2-4 hour buffer for testing. Backup settings before major updates for quick restoration if incompatibilities arise.

Regular Maintenance Schedule

Monthly: Clear cache (Settings > Apps > Chamet > Storage > Clear Cache). App generates 50-150MB cache monthly, more with video calls.

Quarterly: Force stop and restart (Settings > Apps > Chamet > Force Stop, wait 15 sec, reopen). Refreshes processes, clears memory leaks. Reduces mid-call crashes.

Monitor Performance Metrics

Enable Developer Options, check Settings > Developer Options > Memory for RAM availability trends. Maintain 500MB+ free RAM when Chamet isn't running for call headroom.

Monitor storage monthly (Settings > Storage), maintain 1GB+ free. Set automatic cleanup for unused app caches and downloads. Insufficient storage causes aggressive background process termination.

Keep OS Updated

Install security patches and minor updates promptly—include networking improvements and bug fixes. Major OS upgrades (Android 11→12, iOS 14→15) warrant waiting 2-3 weeks for app compatibility updates.

Verify Chamet compatibility before OS upgrades. Current 4.3.7 requires Android 5.0+/iOS 10.0+, but optimal = Android 7.0+/iOS 14+. Upgrading OS beyond device capabilities (Android 12 on 2GB RAM) creates more problems.

When to Seek Support

Hardware vs Software Limitations

Persistent issues after all troubleshooting = hardware limitations. Devices with 2GB RAM, 4+ year old processors, or minimum OS versions (Android 5.0, iOS 10.0) face performance ceilings software can't overcome.

Compare specs against recommended: 3GB+ RAM, Android 7.0+/iOS 14+, 5GB+ free storage, 2019+ processors. Significant gaps suggest device upgrade more effective than continued troubleshooting.

Documenting for Support

Capture error messages, timestamps, reproduction steps. Record WiFi-only, mobile-only, or both network issues. Note if affecting all contacts or specific users (latter = recipient-side).

Document implemented steps and results—support prioritizes detailed reports over vague complaints. Include device model, OS version, app version (4.3.7), network type, ISP info for targeted assistance.

Temporary Workarounds

Reduce video to 480p (Settings > Network Settings > Maximum Resolution) to decrease bandwidth/processing. Enable Data Saver Mode to limit background consumption. Sacrifices visual quality but often restores audio sync and stability.

Schedule calls during off-peak (2-6AM, 10AM-2PM local) when server load and network congestion reduce. Provides better experience while waiting for updates or infrastructure improvements.

FAQ

Why does audio desync happen after updates? 4.3.7 (Dec 11, 2025) enforced stricter UDP requirements, eliminated TCP fallback. Devices with improper port forwarding (10000-20000), NAT Type 3, or <150-300MB RAM during calls fail sync checks previous versions accommodated.

How to fix reconnect loop on Android? Disable battery optimization (Settings > Apps > Chamet > Battery > Don't optimize), grant Allow all the time permissions (Microphone/Camera/Storage), clear cache (Storage > Clear Cache), force stop 15 sec, enable unrestricted background data. Configure router for UDP ports 10000-20000, verify NAT Type Open/Moderate.

What causes random disconnects? Latency >150ms, packet loss >1-3%, bandwidth <1Mbps minimum. Network transitions, aggressive battery optimization, insufficient RAM (<150MB available) trigger disconnection protocols. Verify signal >-90dBm, disable Smart 5G to prevent mid-call switching.

How to clear cache without losing chat history? Settings > Apps > Chamet > Storage > Clear Cache (not Clear Data). Removes 50-150MB temp files, preserves chat/credentials/settings. Force Stop, wait 15 sec, reopen. Cloud messages restore automatically.

Does VPN cause audio delay? Yes—adds 30-100ms latency via encryption overhead and routing hops, often exceeding 150ms threshold. Reduces bandwidth 10-20%, potentially dropping below 2Mbps minimum. Disable during calls unless bypassing ISP throttling or regional restrictions.

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