I don’t have access to Qualcomm QCS6490 board support package, so I had to use only public open source drivers when I started building my system. I found a Rubik Pi 3 (it has QCS6490 SoC too) Android 13 image and I wanted to remake it to work with Dragon Q6A too. But, I found out that Rubik Pi 3 has only built-in UFS memory - you flash the OS with the board connected to a computer. This means that I had to rebuild the image completely because Q6A has UEFI that needs a different partitions and files to boot. To be sure I can copy some of the parts of the Rubik Pi 3 Android image and it will work, I chosen other parts of the system from AOSP 13 and GloDroid 13 (so the final version is Android 13).