Armbian Ethernet not working on Ugoos AM3

[Fast_taters]

Hello.

I'm running Armbian on a Ugoos AM3 TV box. I downloaded the Armbian_community_26.2.0-trunk.696_Aml-s9xx-box_noble_current_6.18.21_xfce_desktop.img.xz image from https://github.com/armbian/community/releases/download/26.2.0-trunk.696/Armbian_community_26.2.0-trunk.696_Aml-s9xx-box_noble_current_6.18.21_xfce_desktop.img.xz

 

I'm using an 8GB USB flash drive. I formatted the flash drive to FAT32. I burned the image to the flash drive using Win32 Disk Imager. After burning the image, I found the u-boot-s905x-s912.bin file in the root directory of the flash drive and renamed it to u-boot.ext. In the /dtb/amlogic/ directory, I found the meson-gxm-ugoos-am3.dtb file and edited the path in the extlinux/extlinux.conf file in the FDT line. The resulting line was:

FDT /dtb/amlogic/meson-gxm-ugoos-am3.dtb

I connected a monitor via HDMI to the TV box, a network via Ethernet, a USB keyboard, and inserted a USB flash drive into the TV box. Armbian loaded normally. I followed the steps to create a user and install locales. No network setup messages appeared during setup. After setup and booting, I ran the command as the user

ip a

I saw that the TV Box hadn't received an IP address. I tried running the command sudo systemctl restart NetworkManager , but the IP address didn't appear. I turned off the TV Box using the command sudo poweroff. I disconnected the USB flash drive and booted into the TV Box in Android (I'm using a slimBox). I checked the network in Android—both Ethernet and WiFi were working. I switched the WiFi status in Android to off, and then re-enabled the WiFi. I inserted the USB flash drive with Armbian into the TV Box and booted into Armbian—the Ethernet network was working. I tried shutting down the system using the command sudo poweroff. I disconnected the TV Box from the power supply. After that, I booted the TV Box into Armbian again—both Ethernet and WiFi were still not working.

If I re-enable the network in Android, the Ethernet will work again until the power is cut off. I tried using the dtb files meson-gxm-q201.dtb and meson-gxm-q200.dtb, but the Ethernet also doesn't work after a power outage.

My TV box uses an LTM8830 WiFi module and an Amlogic S912 ARM Cortex-A53 processor. RAM is 2 GB.