WhatsApp for Vivo iQOO 11

OriginOS aggressively kills background apps to save battery, which silences WhatsApp until you reopen it. Go to Settings > Battery > High background power consumption and allow WhatsApp, then open Settings > Apps > Manage apps > WhatsApp > Battery (or Power consumption management) and set it to 'Allow background activity' / 'No restrictions' and enable Autostart. Also open the recent apps screen and lock WhatsApp's card (swipe down on it or tap the lock icon) so the system stops clearing it from memory. See how others solved this on Reddit

OriginOS updates often reset background and notification permissions, so incoming WhatsApp calls no longer ring or pop up. Go to Settings > Apps > Manage apps > WhatsApp > Notifications, make sure the 'Calls' channel is enabled with 'Floating notifications' (banners) and lock-screen display on, then re-enable Autostart and background activity under Settings > Battery. In WhatsApp itself, open Settings > Notifications and re-confirm your call ringtone so the channel is rebound after the update. See how others solved this on Reddit

Origin Island only surfaces apps that have an active live notification, and OriginOS support for third-party messengers like WhatsApp has been inconsistent across builds, so it may not appear at all. First make sure WhatsApp notifications are allowed and not battery-restricted (Settings > Apps > Manage apps > WhatsApp), then check Settings > Origin Island / Dynamic Light for any toggle related to app notifications. If it still won't appear, update both OriginOS and WhatsApp to the latest versions, since some builds simply don't expose the island for third-party apps. See how others solved this on Reddit

The cleanest path is a Google Drive backup. On your old phone open WhatsApp > Settings > Chats > Chat backup and back up to your Google account, then install WhatsApp on the iQOO 11, verify the same phone number, and tap Restore when prompted. If you only have a local backup, copy the Databases folder from the old phone's WhatsApp storage (Android/media/com.whatsapp/WhatsApp/Databases) to the same path on the iQOO 11 before installing, and use the same number so WhatsApp detects the local backup during setup. See how others solved this on Reddit

This almost always means the Google account or phone number doesn't match the one that made the backup, or the backup was made on a newer WhatsApp version than the one you're installing. Sign into the exact same Google account (Settings > Accounts and backup / Google), verify the same number, and install the latest WhatsApp from the Play Store before restoring. If it still fails, the Drive backup may be incomplete or corrupt, and a local backup (the WhatsApp/Databases folder copied to internal storage) is the only reliable fallback. See how others solved this on Reddit

By default OriginOS hides message previews on the lock screen and clears locked apps from memory. Go to Settings > Notifications & status bar, open WhatsApp and enable 'Show content on lock screen' (and lock-screen notifications), then open the recent apps view and lock WhatsApp's card so the system won't kill it. Finally set WhatsApp to 'Allow background activity' under Settings > Apps > Manage apps > WhatsApp > Battery so previews keep arriving in real time. See how others solved this on Reddit