If WhatsApp doesn’t detect a backup, it might be because:

• You aren't logged into the same Google account.
• You aren't using the same phone number that was used to create the backup.
• Your SD card or chat history is corrupted.
• A backup file doesn't exist on the Google Drive account or locally on your device.

Can’t create a Google Drive backup

If you’re having issues creating a Google drive backup, verify the following:

• You have a Google account added to your device.
• You have Google Play services installed on your device.
• If you're attempting to back up using cellular data, you have data for both WhatsApp and Google Play services. Contact your provider if you're unsure.
• Attempt to back up on a different network. Try connecting to Wi-Fi if you're unable to back up using mobile data.

Can’t restore a Google Drive backup

If you’re having issues restoring a Google drive backup, verify the following:

• You’re using the same phone number and Google account that the backup was created on.
• If you’re restoring an end-to-end encrypted backup, you’re using the correct password or key.
• There's enough memory on your device to restore the backup.
• You have Google Play services installed on your device.
• Your device’s battery is fully charged or plugged into a power source.
• Your device has a strong and stable internet connection. If restoring using a cellular data network doesn't work, please try Wi-Fi.

Related resources:

• How to restore your chat history
• How to back up to Google Drive
• Can't remember password for encrypted backup