WhatsApp for Honor 100

This is the most common Honor complaint and it comes from aggressive battery management that suspends WhatsApp in the background. Go to Settings > Apps > App launch (called Manage apps launch on some MagicOS versions), find WhatsApp, turn off Manage automatically, then enable Auto-launch, Secondary launch, and Run in background. Also open Settings > Battery, turn off Power saving mode, and make sure WhatsApp is not in any sleep or optimization list so messages arrive in real time. See how others solved this on Reddit

WhatsApp's in-app camera uses a lower-performance capture mode, so previews and recordings often stutter on Honor devices. The reliable workaround is to shoot with the stock Honor Camera app first, then attach the clip from your gallery in WhatsApp instead of filming inside the chat. You can also clear WhatsApp's cache via Settings > Apps > WhatsApp > Storage > Clear cache, and confirm camera permissions are granted under Settings > Apps > WhatsApp > Permissions. See how others solved this on Reddit

Honor's power and connectivity management can throttle Wi-Fi during calls, causing instability. First make sure WhatsApp is set to Run in background and is excluded from battery optimization (Settings > Apps > App launch). Then, to stop the phone bouncing between networks mid-call, go to Settings > Wi-Fi > Wi-Fi+ (or Wi-Fi assistant) and turn off automatic switching to mobile data. If problems persist, forgetting and rejoining the Wi-Fi network or restarting the router often clears it. See how others solved this on Reddit

This usually means WhatsApp is capturing audio from the phone's built-in mic instead of the headset mic, or the microphone permission is restricted. Check Settings > Apps > WhatsApp > Permissions and make sure Microphone is allowed, then unplug and firmly reseat the headphones since a partial connection can disable the inline mic. If it persists, test the headset in a normal phone call to confirm the mic works, and restart WhatsApp so it re-detects the audio route. See how others solved this on Reddit

Sustained warmth and battery drain during WhatsApp use usually trace back to constant media auto-downloading or a stuck background process. Open WhatsApp > Settings > Storage and data and set Media auto-download to No media on mobile data. Then go to Settings > Battery > Battery usage to confirm WhatsApp isn't abnormally high, and clear its cache via Settings > Apps > WhatsApp > Storage > Clear cache if the heat continues. Closing and reopening the app also clears a hung process that can keep the phone warm. See how others solved this on Reddit

Yes, many Honor owners report genuine MagicOS quirks - mostly delayed notifications, background app kills, and occasional app glitches rather than hardware faults. The fixes are almost always in software: keep MagicOS updated via Settings > System and updates > Software update, update WhatsApp through the Play Store or AppGallery, and disable aggressive battery optimization for WhatsApp under Settings > Apps > App launch. These settings resolve the large majority of the issues people complain about. See how others solved this on Reddit