I was able to compile a custom Armbian image for the Transpeed 8k618-T TV Box.
I added a patch for HDMI and it seems to work ok.
Still working on WIFI. The HK2735M wifi chip is compatible to the bcm4335. the Linux
driver is brcmfmac, controlled by kernel config CONFIG_BRCMFMAC_SDIO and
CONFIG_BRCMFMAC. The driver expects the firmware files under
/lib/firmware/brcm.
If you want to build your own image or view the patches you can find it here.
https://github.com/NickAlilovic/build
I like to thank Andre Przywara. I would not of been able to get this far without his help.