Question: how to transfer all whatsapp messages from old iphone to new iphone?
Answer: Step 1: On your old iPhone, open Settings and tap on your name at the top. Step 2: Tap on iCloud. Step 3: Toggle on iCloud Drive. ...  Step 4: Now open WhatsApp and go to the Settings tab. Step 5: Open Chats > Chat Backup. Step 6: Press the Back Up Now button.