Hi everyone,
I am new here, thank you @balbes150 & community for your effort to bring Linux to Android TV box.
I have just bought an Android Box named A5X Plus Mini, RK3328 + 2GB DDR3 + 16GB of EMMC, Android 7 rooted.
I tried to burn the Armbian image Armbian_20.05.0_Rk3328-tv_bionic_current_5.6.0-rc4_20200312.img to SD card using Etcher but the SD Card could not boot. Then, I combined the USB and SD card, still couldn't boot. Then I use the LibreELEC USB burning tool, at this time it worked, but only for USB and SD card plugged-in only.
Then I would like to install armbian to emmc, but either emmc card and ethernet did not recognized. I have tried to change the dtb to all of rk3328-*.dtb but still the same result, some dtb are not able to boot such as rk3328-evb.
I also tried ddbr to backup the emmc the result: "UNABLE TO FIND ANY EMMC OR SD DRIVES ON THIS SYSTEM!!!". I also noticed that the BOX has only the RED light during the booting, even logged in instead of BLUE one similar to Android booted case.
The most dtb files for this box that makes the box able to boot are: rk3328-box.dtb, rk3328-rockbox.dtb.
Hence, I tried to exact the dtb file from firmware which is downloaed from here: http://justop.co.uk/tech-supports/firmware-upgrade-justop-a5x-plus-2gb-16gb-android-tv-box-to-android-9-0/ (as it look the same design, but different box name).
At this time, there is no display from HDMI, but the box switching from RED to BLUE on the board, but cannot see what is going from the screen.
I tried to solder the UART console to the board to see what was wrong from the screen but I have got my fingers burned (first time I do this), I will sold them later.
Below is the board and dts, dtb file that I have made.
Your hints to make this box working with armbian are highly appreciated.