Android version compatibility I would like to know a tablet with following specifications support Android 4.3 (or 4.2 or 4.1)? It currently runs on 4.0.4.

Specifications Summary:

DISPLAY (800x444)
    Size: 800x444
    Refresh Rate: 59.69 Hz
    Density: 120 dpi (Low)

PROCESSOR (ARMv7)
    Processor: ARMv7 Processor rev 2 (v7l)
    Cores: 1
    Max Frequency: 1008 Mhz
    Instruction Sets: armeabi-v7a, armeabi
    SIMD Instructions: NEON

MEMORY (353 MB)
    System RAM: 353 MB
    JVM Max Memory: 48 MB
    Internal Storage: 617 MB
    External Storage: 3785 MB

OPENGL 1.X (Mali-400 MP)
OPENGL 2.0 (Mali-400 MP)
GRAPHIC MODES (RGBA 32bit)
GRAPHICS
    OpenGL 2.0


Full details of spec is available here : https://gist.github.com/abidrahmank/6913200
353MB is probably too little for a proper 4.1+ experience.

Besides this, there's no generic Android installation media, each device needs its firmware tailored and adapted by the manufacturer. If the manufacturer has put it end-of-life, you're hosed unless you find someone who ported it or you port it yourself.