xism4/smartGyro ? reverse-engineered prompt

Build me a small Java based investigation project around this smartGyro APK, and help me figure out where the scooter’s speed limit is being controlled.

I already have the decompiled app and I want you to inspect the code, trace any network requests, and look for anything related to speed, region, controller settings, pairing, or hidden unlock options. If there are suspicious links, configuration values, or device messages that might point to how the scooter checks or changes its limit, highlight them clearly and explain what they seem to do in plain language.

If it helps, organize the findings so I can easily see the important classes, methods, and any data flow that looks relevant. Look up current docs or tools online if you need to. I’m mainly trying to understand whether the APK itself can reveal a software way to change the limit, or if it only points to the hardware display and controller route.