Leneren

Hi, First of all, sorry for lengthy post and that I ask a lot of things at once, I am very new to linux and this would be my first real experience. I am trying to set up home automation and home assistant server. As I am just getting started to learn all the ropes, I thought about what could be used for sečrver and I remembered that I have an old T9 android TV box see the attachement, I read through this thread and tried to follow the instructions throughout the posts. I burned the armbian image to sd card, which insterted into the sd slot on the T9 board, however I am unable to get the board to boot from the sd card. The box boots normally into android, when no SD card is insterted. When the card is inserted, nothing happens and the box does not turn on at all. It may be a big ask, but would someone be able and willing to help me find out the next possible steps? I feel a bit overwhemed as I am not very knowledgable in this field and unsure how to follow the instructions, or better said, I am not sure if I am following the instructions right. Thank you!