Bigdroidos 201 2021 -

This is the most critical "201" concept. In 2021, Google enforced stricter rules on proprietary blobs.

Older BigDroidOS versions struggled with seamless OTA updates. Version 201 integrated fully with Android’s dynamic partitions, allowing system-as-root (SAR) devices to resize vendor and product partitions without repartitioning—a godsend for A/B slot devices.

BigDroidOS v2.01 was distributed as a bootable ISO (for USB/dual-boot) and as a virtual machine image. It performed best on Intel Core i-series and AMD Ryzen systems with at least 4GB of RAM. Official support included: bigdroidos 201 2021

Independent benchmarkers on the Geekbench Browser and ThriftyAndroid Lab compared BigDroidOS 201 (2021) against stock Android 11 on identical hardware (Snapdragon 660, 4GB RAM). The results are telling:

| Metric | Stock Android 11 | BigDroidOS 201 2021 | Improvement | | :--- | :--- | :--- | :--- | | Geekbench 5 (Single) | 345 | 372 | +7.8% | | Geekbench 5 (Multi) | 1,420 | 1,512 | +6.5% | | RAM Usage (idle) | 1.9 GB | 1.4 GB | -26% | | App Launch Speed | 1.2s avg | 0.9s avg | -25% | | Thermal Throttling | Starts at 75°C | Starts at 82°C | Higher threshold | This is the most critical "201" concept

The performance gains are attributed to a custom scheduler (BigDroidOS’s schedutil-v2 tuning) and the removal of resource-heavy Google Play wakelocks.

One of the most praised features was the camera HAL bridge, which translated Camera2 API calls to legacy Camera1 HAL. This meant devices with unsupported sensors (e.g., old Sony IMX sensors) could still use GCam mods designed for newer APIs. 420 | 1

BigDroidOS implies a custom experience. In 2021 (Android 11/12), theming and features were moving heavily into Runtime Resource Overlays (RRO).