Ensure you are using the correct USB port on the TV box (usually labeled OTG ).
| Feature | Android 7.1.2 (Stock) | Android 9 (Unofficial) | | |---------|----------------------|------------------------|----------------------------| | Boot time | 45+ seconds | 35 seconds | 25 seconds | | Kodi 20+ support | No (needs older version) | Partial | Full support | | 4K YouTube | Stuttering | Better | Smooth with VP9 software | | RAM usage (idle) | 550MB | 480MB | 390MB | | Netflix (HD) | No | No | No (still 480p due to L3) | | Touchscreen support | Basic | Basic | Multi-touch gestures | | Security patch | 2016-2018 | 2019-2020 | 2024-2025 | rk3229 android 10 firmware updated