Sorry, can not identify such "answers". There is a discussion around RK3229 but nothing precisely about the last firmware, where is it, if works or no.
Please, let me know again about my worries.
Give again such answers.... I have ever the same problems reported here ... I can not boot under RK3229 ... with such RAM and ROM described.
Do you have some success on it?
I don't really what you intend for "TRUST image", this is a thread about Libreelec on rk322x, all the images and instructions are in the first page, just grab the image for your particular board, burn it on an sdcard (maybe using a proper image writer like balenaEtcher, which does verification too), plug the sdcard and turn the thing on.
As ilmich also said, try different images before giving up. But still, everything is already explained in the first page of the thread.
If you're looking for android images for your box, you're in the wrong place.
If you're looking for linux on your box, search for armbian (the exercise to find the forum and the right thread is left to you)