Well, I can't give an exact answer to the question of whether there is still a fast charge after the update of Xiaomi 13. However, according to the information I understand, the charging experience of the Mi 13 mobile phone may be improved after it is upgraded to the surging OS system. Surging OS is a new operating system launched by Xiaomi, designed to improve the user experience. In terms of charging, Pai OS may optimize the charging algorithm to better manage battery life and charging speed. This optimization could lead to faster charging while also protecting the battery more effectively. Therefore, you can try to upgrade to Thepaper.cn OS system to see if you can improve the charging experience. However, please note that it is best to back up data before upgrading to avoid data loss due to unexpected circumstances.