How to backup and restore WhatsApp chats on iPhone:
1. Open the WhatsApp application on your iPhone and tap on Settings in the bottom-right corner of the screen.
2. Click on Chats and then Backup Chats.
3. Choose the backup frequency (daily, weekly, or monthly) and the cloud account you want to use (iCloud or Google Drive).
4. Click Back Up Now to start the backup process. It may take a few minutes depending on the amount of data and internet speed.
5. To restore from a backup, you must have the same phone number and cloud account used for the backup.
6. Delete the WhatsApp application from your device and reinstall it from the App Store.
7. Follow the onscreen instructions to reactivate your phone number and agree to the Terms of Service.
8. A message will appear asking you to restore your chats from a backup located in your cloud account. Click on Restore and wait for all your data to be restored.
This is how to backup and restore WhatsApp chats on iPhone. I hope this is useful to you.
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