Unable to install Android in Connect core CC-SB-WMX-L76C-1

I followed guide at https://www.digi.com/resources/documentation/digidocs/90001945-13/Default.htm#task/android/t_load_android_firmware.htm%3FTocPath%3DDigi%2520Embedded%2520for%2520Android|Get%2520started|_____3

I downloaded firmware images the site points to (ftp://ftp1.digi.com/support/android/5.1.1/r4/images/82003939_C.zip)

but when I try to install it in the device I get the response:

ERROR: Could not find file u-boot-ccimx6dlsbc512MB.imx

Does that mean that my Connect core device (CC-SB-WMX-L76C-1) this firmware build doesn’t support this firmware image?

What is the correct image I should use to install Android?

Thanks in advance

The stock images you are downloading are for 1GB SBC that comes with the dev kit. And you have 512Mb SBC.
The u-boot is different, but you already have u-boot so you do not even need to update it. The rest of the images should be fine. So just modify startup script to not update u-boot or add u-boot-ccimx6dlsbc512MB.imx to your uSD card.
Or build your own images for your platform. But that’s overkill for just trying out the Android.