First of all, open the File Manager app on your Oppo phone to navigate to your WhatsApp Database folder. Go to Android > media > com.whatsapp > WhatsApp > Databases. You can see the dates for the backup files. Choose the latest backup file dated prior to which your WhatsApp messages got deleted.
Back Up and Restore Android Data with 1 Click. Back up everything on Android phone to PC with 1 click. Restore Android from backup file on PC with 1 click. Support contacts, text messages, call logs, music, videos, photos, books and apps. READ-ONLY, fast transfer, multiple device management, ad-free, green, easy-to-use, etc.The whole process is quick and simple. Check it out: - Step 1: Once your OPPO has detected by Coolmuster Android Assistant, go to the " Super Toolkit " section and click " Backup ".