This is the best manual for the Xiao Xiang bms app that I have found. It was provided by QUCC on 8/28/2022. One important omission is that on the Parameter Setting page of the app, to get the new settings to "take", you need to press the checkmark at the upper right of the screen. A save button would be clearer, but maybe this is universal for Android, which I am no expert on. The default settings (there are 4 choices) seem very reasonable.
