Help with allwinner h3 tv box

[blasterpro1233]

Basically it has 1 gb ROM 8gb ram h3 chip and I HAVE put many img files on SD card NONE of them boot and as soon as I take the SD card out it boots into android perfectly fine... I'm lost on words and what to do I have also tried FEL mode on linux but the request times out with error -7 power supply is 5v 2a which is fine for this so not that and I'm using a 256gb a1 rated SD card. This is from a generic Chinese tv box called meecom and it has ADX-H-V1.0 written on it. I also changed the dtb files a lot but it still gave no display or sign that it was booted into armbian idk what to do help ( btw I repasted it that's why it has no thermal putty on it)