WhatsApp for Pixel 5a 5G

System updates on the Pixel 5a 5G sometimes break WhatsApp's notifications or media handling, so first open the Play Store, search WhatsApp and tap Update to get the latest build. If it still misbehaves, go to Settings > Apps > WhatsApp > Storage & cache and tap Clear cache (not Clear storage, which would log you out), then reboot. As a last resort, back up your chats first via WhatsApp Settings > Chats > Chat backup to Google Drive, then uninstall and reinstall. See how others solved this on Reddit

On your old phone, open WhatsApp > Settings > Chats > Chat backup and run a fresh backup to Google Drive using the same Google account you'll sign into on the Pixel 5a 5G. Then install WhatsApp from the Play Store on the new Pixel, verify the same phone number, and when prompted tap Restore to pull the chats and media back from Drive. Make sure both phones are on Wi-Fi and the Pixel is signed into that matching Google account, or the restore prompt won't appear. See how others solved this on Reddit

Android's battery optimization frequently delays or silences WhatsApp calls and message alerts on Pixel phones. Go to Settings > Apps > WhatsApp > Battery (under App battery usage) and choose Unrestricted so the app can run in the background, then check Settings > Apps > WhatsApp > Notifications to confirm message and call channels are enabled. Turning Adaptive Battery off under Settings > Battery > Adaptive Battery can also stop the system from throttling WhatsApp overnight. See how others solved this on Reddit

If the phone won't boot you can't pull a new backup, so recovery depends entirely on your last Google Drive backup made via WhatsApp Settings > Chats > Chat backup. Once you have a working phone (a warranty replacement or another Android), install WhatsApp, verify the same number, and tap Restore to bring chats back from Drive. Going forward, set Chat backup to Daily and enable Include videos so a hardware failure never costs you your history. See how others solved this on Reddit

Even after Google's final farewell update, WhatsApp itself keeps getting its own updates through the Play Store, so keep auto-updates on under Play Store > profile icon > Settings > Network preferences > Auto-update apps. The real risk is that WhatsApp eventually drops support for older Android OS versions, so check Settings > About phone > Android version to confirm what you're on. As long as your Android version stays within WhatsApp's supported range you'll keep receiving the app, but plan to migrate before WhatsApp ends support for that OS level. See how others solved this on Reddit