Hi Viswanath,
You can download Android KK4.4.3 from the "Operating System Software-Board Support Packages" sub-section of the "Run-time Software" section from "Software & Tools" tab of the Product Summary Page of the SABRE Platform at the following link:
SABRE for Smart Devices Reference Design|Freescale
Under this section, you will find these options:
IMX6_KK443_200_ANDROID_DEMO_EVK_BSP
IMX6_KK443_200_ANDROID_DEMO_AI_BSP
IMX6_KK443_200_ANDROID_DEMO_SD_BSP
IMX6_KK443_200_ANDROID_SOURCE_BSP
Hope this will be useful for you.
Best regards!
/Carlos
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