Direct answer
Good Android bug evidence solves four problems: connect the device reliably, reproduce the issue accurately, align user actions with technical context, and deliver it in a format engineering can act on. These guides cover WebUSB, ADB, requests, logcat, video, and report structure.

Choose a guide by problem
| Problem | Start here |
|---|---|
| You do not want a local ADB install | Browser WebUSB testing and the ADB comparison |
| You need to diagnose a failed API | Android Chrome and WebView network capture |
| A bug is hard to reproduce | The report template and synchronized video plus logcat |
| Chrome cannot see the phone | WebUSB connection troubleshooting |
| You need to choose a mirroring workflow | TabQA versus scrcpy |
Editorial standard
- Commands, scope, and limitations follow official documentation and the current product implementation.
- Each page gives the direct answer first, then explains steps, prerequisites, and failure modes.
- Chinese and English pages publish the same facts rather than treating translations as separate products.