WhatsApp for Honor Magic 5

MagicOS aggressively closes background apps to save battery, which can kill WhatsApp's connection during calls. Go to Settings > Apps > Apps > WhatsApp > Battery usage and set it to 'No restrictions'. Then open Settings > Battery > App launch (Launch), find WhatsApp, turn off 'Manage automatically', and enable Auto-launch, Secondary launch and Run in background. Finally, in Settings > Battery > More battery settings, turn off any Wi-Fi power-saving so calls don't drop when the screen turns off. See how others solved this on Reddit

This is usually MagicOS dropping the Wi-Fi link to power-save, sometimes combined with automatic Wi-Fi/mobile-data switching. Go to Settings > Wi-Fi > More Wi-Fi settings and turn off 'Switch to mobile data automatically', then forget and rejoin your 5GHz network. Also make sure WhatsApp is set to 'No restrictions' under Battery usage so the connection isn't cut. If it persists, disable band-steering on your router so the phone stops hopping between bands mid-call. See how others solved this on Reddit

MagicOS blocks WhatsApp from drawing over the lock screen and from running freely in the background. Go to Settings > Notifications > WhatsApp and enable 'Allow notifications', 'Lock screen notifications' and 'Banners'. Then in Settings > Apps > Apps > WhatsApp > Permissions, enable 'Display over other apps' and 'Display pop-up windows while running in background'. Finally set WhatsApp to 'No restrictions' under Battery usage so it can wake the screen for calls. See how others solved this on Reddit

This usually means WhatsApp is missing the camera permission or another app is holding the camera open. Go to Settings > Apps > Apps > WhatsApp > Permissions and set Camera to 'Allow', then force-stop WhatsApp (Settings > Apps > Apps > WhatsApp > Force stop) and reopen it. If it still fails, clear WhatsApp's cache under Settings > Apps > Apps > WhatsApp > Storage, and update WhatsApp from the Play Store or AppGallery, since older builds can clash with newer MagicOS camera drivers. See how others solved this on Reddit

WhatsApp's official iOS-to-Android transfer uses Google's 'Move to Android' app on the iPhone plus a USB-C cable connecting both phones, and it must be done during the Honor's first-time setup. On the Honor, run the setup wizard (factory reset first if you've already finished setup), choose to transfer from an iPhone, then scan the QR code shown on the Honor using 'Move to Android' on the iPhone and follow the WhatsApp prompts. The chats and their media copy directly over the cable; the chats can't be merged in afterward, so don't open WhatsApp on the Honor before transferring. See how others solved this on Reddit

These stutters usually come from MagicOS pausing background apps plus a bloated app cache. Set WhatsApp to 'No restrictions' in Settings > Apps > Apps > WhatsApp > Battery usage, and in Settings > Battery > App launch set WhatsApp to manual with Run in background enabled. Then clear its cache under Settings > Apps > Apps > WhatsApp > Storage. If freezes continue, make sure both MagicOS and WhatsApp are fully updated, since several lag bugs were patched in later system releases. See how others solved this on Reddit