If you find "BigdroidOS", "BigdroidOS 201", or "DroidBoost" inside your device's system log or system properties, .
BigDroidOS 201 is a specialized training course or technical module—often part of internal engineering bootcamps at companies like Google—designed to advance a developer's understanding of the Android Open Source Project (AOSP) and system-level architecture. bigdroidos 201
这套版本体系说明：BigDroid 仍在持续开发和出厂更新，是而非历史遗留物。 If you find "BigdroidOS", "BigdroidOS 201", or "DroidBoost"
