He could write novels on his phone, but he had to pay attention to some technical details and equipment requirements. Writing a novel on a mobile phone could be achieved by using a specific application or software. These applications or software are often called "writing applications" or "novel editors" and can be downloaded and installed through mobile app stores. There are a few things to note when using these applications or software: 1. The phone must have enough storage space to store the novel files. 2. The phone needed to have a stable internet connection so that it could read and edit the novel in real time. 3. Using a mobile phone to write a novel requires sufficient time and energy because it requires constant conception, writing, editing, and proofreading. Although using a mobile phone to write a novel requires some technical and equipment requirements, it is a very interesting and practical way of writing.