Thank you very much for your responses, it totally make sense. I will try to build it myself, tho I have never done that, and my knowledge is very limited. I'd love to help one day, but this really is beyond what I can offer, for now.

Thanks for clarifying. And which would be the correct version of u‑boot for my BTV OTT BOX (model B11, Amlogic S905X3)? I admit I’m a bit lost at this point.

The screen shot you have shows you are using the Ugoos X3 version of uboot. That will not work as that is specific to that box.

moved post to correct forum

Friends, as shown in the image, I am trying to install a Linux system on this BTV: OTT BOX, model B11 with an Amlogic S905X3 CPU. However, I am not succeeding because it cannot read the USB drive. I have already tried changing the .ext, attempted to burn the image using Rufus, Balena, and nothing worked. I am using a Multilaser USB drive which I believe is 2.0. At the moment I don’t have another USB drive or memory card to test. Any suggestions?