WhatsApp for Huawei Nova 10

The Nova 10 runs HarmonyOS with AppGallery instead of the Play Store, and WhatsApp is not listed in AppGallery in most regions. The simplest route is the Petal Search app (install it from AppGallery if it isn't already on the phone), search for WhatsApp, and let it download the genuine APK; alternatively download the official APK directly from whatsapp.com/android in your browser. When you tap to install, allow installs from that source when prompted (Settings > Security > More settings > Install apps from external sources, then enable the browser or Files app). See how others solved this on Reddit

WhatsApp relies on Google Play Services for push notifications and background delivery, and HarmonyOS ships without Google Mobile Services, so notifications and message delivery break or the app stops opening once an older WhatsApp version is dropped. First update WhatsApp to the latest official APK from whatsapp.com/android, since outdated sideloaded versions are blocked. If it still fails, many Huawei users run WhatsApp inside a Google-services container app such as GBox, which provides the missing framework. There is no native Huawei fix, as the limitation comes from the absent Google framework. See how others solved this on Reddit

That message appears when WhatsApp detects an unofficial build (such as GB WhatsApp or WhatsApp Plus) or an APK from an untrusted mirror, which is easy to pick up when sideloading on HarmonyOS. Back up your chats first, then uninstall the current version completely and reinstall only the genuine APK from whatsapp.com/android or via Petal Search. After verifying the same phone number, WhatsApp can restore your messages from a local backup if one is present on the device. See how others solved this on Reddit

Because Huawei phones cannot use Google Drive backup, rely on a local backup. On the old phone open WhatsApp > Settings > Chats > Chat backup and tap Back up to write a fresh local backup, then move the whole WhatsApp folder (Internal storage > Android > media > com.whatsapp > WhatsApp) to the Nova 10 using Huawei Phone Clone or a cable transfer. Install WhatsApp on the Nova 10, verify the same number, and it will detect the local backup and offer to restore. Confirm the backup date is current before wiping the old phone. See how others solved this on Reddit

Cross-brand moves are awkward because Huawei stores local backups rather than Google Drive backups. Create a local backup in WhatsApp > Settings > Chats > Chat backup, then copy the entire Android/media/com.whatsapp/WhatsApp folder to the new phone using a PC or transfer cable. On a phone with Google services, install WhatsApp, verify the same number, and restore from the local backup before it offers a Google Drive backup. The key is moving that WhatsApp folder intact so the new phone can read your message database. See how others solved this on Reddit