First of all, you must use a font with characters, such as Huakang Girl font, etc., Chinese regular script. For characters, please click the link to download the characters. In the theme style, local → import fonts from SD card, mix and match → font → replace Apply the font, then I open Baidu Input Method, Settings, → Advanced Settings → Import Characters → Just import the downloaded characters, open the input method, select the trademark and it will appear,

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