Most stock firmwares are unrooted. Use:
Many newer apps require at least Android 4.4 to function, so this firmware version extends the device's usable life. How to Install RK3026 4.4.2 Firmware Rockchip Rk3026 4.4.2 Firmware
The is a vintage, ultra-low-end dual-core processor primarily found in budget tablets from 2013 and 2014. The Android 4.4.2 KitKat firmware represents one of the final official updates for this hardware, offering a balance between legacy stability and the then-modern "KitKat" features . RK3026 Hardware Overview Most stock firmwares are unrooted