Khadas

@Victorhtf I wanted to write to you these days for an update and to ask you something. I have NEVER managed to boot from an SD card, I checked on Android and my SD card is recognized correctly. If I put the SD card in a USB adapter the boot happens correctly. Were you able to boot from the SD card? Regarding the installation on eMMC, I bricked the tv box and since there is no way to find the firmware for this TV box, I sent it back with a free return (fortunately I always had time to do so). With the armbian-ddbr command I made a backup before bricking it but the generated image is NOT compatible with the Amlogic USB Burning tool and without a firmware compatible with the TV box it remained bricked. I read various Chinese forums but I couldn't download anything compatible. I tried the unofficial armbian fork and with kernel 6.6 on microSD everything was fine but I wasn't reading eMMC then I entered the dtb meson-gxl-s905l2-ipbs9505.dtb and confirmed access to the eMMC. I tried to do an installation on eMMC from the fork, it booted but didn't load the kernel. Then I put that corrected dtb and uboot on a fresh armbian official s905 image and with the command armbian-install part 2 I bricked the tv box. I'm waiting for the arrival of a second TV box and this time I'll pay more attention to installing it on eMMC

After having seen the continuous hardware changes made by the manufacturers of the cheap Android TX boxes, I would like to understand if it is possible to recover the firmware, therefore the factory Android image compatible with the Amlogic USB Burning tool. After booting from the SD with the armbian-ddbr command, I managed to create a compressed file with the factory Android image but this file does not work with the Amlogic burning tool but only with the armbian-ddbr (restore) command. Since it is easy to brick these TV boxes by trying to install Armbian on emmc I would like to be ready to be able to load the original factory Android image. My TV box is a TX3 Mini built in 11.2023 with S905L2-B cpu and Samsung emmc. I haven't found the firmware anywhere but only old 2017/2018 firmware with old hardware not compatible with the TV box. Any suggestions are welcome.

My recently purchased TX3 Mini has an S905L2-B soc and samsung eMMC I was expecting to find the classic S905W and I think they are using this one lately. I recommend you try the DTBs for the S905L2 CPU meson-gxl-s905l2-ipbs9505.dtb I have eMMC access meson-gxl-s905l2-x7-5g.dtb I DO NOT have eMMC access trying to install on emmc I bricked the TV box so be very careful if you then intend to copy Armbian onto the emmc

I did it this way. I booted from the SD and backed up the emmc with the armbian-ddbr command because I wanted to back up the factory Android image. This command creates a compressed file in the /ddb directory that you can move to another external USB stick for example. This file can only be used to restore the emmc.

Is it possible to extract the DTB file from a working Android TV BOX? I'm having fun with a new TV BOX TX3 Mini with Amlogic S905L2B (I was sure to find S905W) and before asking for help I wanted to know if I can recover the DTB file from the Android image that works correctly. Thanks