'link': Rk3188 Android 5.1 Firmware

| Feature | Description | |---------|-------------| | | 2 GB system, 4 GB userdata, rest for internal SD | | File system | F2FS support for /data and /cache (ext4 fallback) | | Multi-boot support | Boot from SD card (alt firmware) via bootable SD image | | Recovery | TWRP 3.2.3 with F2FS, ADB, and partition backup |

Updating RK3188 devices typically requires manual flashing using specialized Rockchip utilities rather than standard over-the-air (OTA) updates. rk3188 android 5.1 firmware