Root has been removed from all Flyme 7 global firmwares due to google certification.

Although we all Chinese,but this is Global Flyme exchange site. Foreign friends could not help you as much as possible.You can describe your thoughts with Google Translate,although there may be a semantic error,it still much better than directly describing Chinese.
大家都是国人，但是这里毕竟是海外的flyme os交流站点，这样提问不会有外国的友人能够尽可能的帮助你。
你可以尝试着使用谷歌翻译来表述你的想法，尽管可能存在语义上的错误，但仍比直接描述中文要好得多。

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