Hi @Xortes,
Yes, I managed to build an Armbian image using the LPDDR3 defconfig mentioned earlier, along with the U-Boot and kernel patches suggested by @Nick A, based on the minimyth2 patch.
Unfortunately, HDMI is still not working, even with the current 6.6.72 kernel. However, since I plan to use this TV box for running AdGuard Home, HDMI output isn’t essential for my use case.
On a positive note, I’ve successfully got both wired and wireless networks working. I’m currently using the box as an AdGuard Home server and a Tailscale subnet router.
If you’re interested, I’d be happy to share the image.