: Ensure the video is fully downloaded; look for a play icon instead of a download arrow.

: If the built-in player fails, try a third-party app like VLC Media Player which supports a wider range of codecs.

: Ensure your device has enough free space to process and play the file.

Navigate to > Android > media > com.whatsapp > WhatsApp > Media . Open the WhatsApp Video folder to find your file. On iPhone :

Open WhatsApp and use the at the top of your chats list.