The launching campaign plan for Oppo Joy Mobile includes defining the target audience, setting campaign objectives, choosing a messaging strategy, selecting marketing channels, developing creative assets, executing and optimizing the campaign, and evaluating outcomes. The focus should be on highlighting the unique features and benefits of Oppo Joy Mobile, creating visually appealing and engaging creative assets, and staying customer-focused, authentic, and engaging throughout the campaign. The ultimate goal is to increase brand awareness, drive sales, and reach a specific number of customers while showcasing the joy of Oppo Joy Mobile.