WhatsApp for Realme 13 Pro

Crashes are usually caused by a corrupted app cache or an outdated version. First open the Play Store, search for WhatsApp and tap Update if available. Then go to Settings > Apps > App management > WhatsApp > Storage usage and tap Clear cache (avoid Clear data, which would wipe local chat data). If it still crashes, update Realme UI under Settings > About device > Software update, since an outdated Android System WebView or system component can take the app down with it. As a last resort, also update Android System WebView from the Play Store. See how others solved this on Reddit

Realme UI's battery saver is killing WhatsApp in the background, so it can't wake the screen for incoming calls. Go to Settings > Apps > App management > WhatsApp > Battery usage and select Allow background activity (turn off any optimization). Then open Settings > Apps > Special app access > Display over other apps and enable it for WhatsApp. Finally, in WhatsApp open Settings > Notifications and make sure call notifications and high-priority/heads-up alerts are turned on so calls render on the lock screen. See how others solved this on Reddit

Realme UI aggressively freezes background apps to save battery, which delays or drops message notifications. Go to Settings > Battery > App battery management, select WhatsApp and disable Sleep / Deep sleep and turn on Allow background activity. Then go to Settings > Apps > Auto-launch (Auto start) and enable WhatsApp so it can wake on new messages. Also confirm notifications are fully enabled under Settings > Notification & status bar > Manage notifications > WhatsApp. See how others solved this on Reddit

Heating is often tied to constant background syncing plus high brightness or refresh rate. Lower screen brightness, switch the refresh rate to Standard/Auto under Settings > Display & brightness > Screen refresh rate, and turn off WhatsApp media auto-download under WhatsApp Settings > Storage and data. If drain stays severe even when idle, check Settings > Battery to see which app is consuming power, and update Realme UI under Settings > About device > Software update, since early 13 Pro firmware had drain and heating bugs that later patches addressed. See how others solved this on Reddit

This happens when the app can't start in the background or show heads-up alerts. Go to Settings > Apps > Auto-launch (Auto start) and enable WhatsApp, then under Settings > Apps > App management > WhatsApp > Battery usage select Allow background activity, and enable Settings > Apps > Special app access > Display over other apps for WhatsApp. Finally, open the Recent apps screen, tap WhatsApp's card menu and select Lock so Realme UI stops clearing it from memory. See how others solved this on Reddit

The fix is to exempt WhatsApp from every power-saving layer. Open Settings > Battery > App battery management, pick WhatsApp and turn off Sleep / Deep sleep while turning on Allow background activity. Then keep Settings > Apps > Auto-launch (Auto start) enabled for WhatsApp, and if you use High performance / Smart power saver modes, exclude WhatsApp from optimization. This stops Realme UI from silencing the app between messages. See how others solved this on Reddit