Oppo

The provided articles do not contain any information about Oppo. Therefore, it's impossible to provide a summary about Oppo based on this information. The articles focus on other companies and topics within the smartphone industry. Specifically, Xiaomi is increasing prices due to rising memory chip costs. Apple is offering discounts in China to boost sales amidst competition. And India is mandating the pre-installation of a state-owned cybersecurity app on new smartphones. These developments highlight the current pressures and strategies within the global smartphone market, including supply chain challenges, competitive pricing, and government regulations.