@jock Please help. Worst TV-box PCB I've ever seen in my life. Hardware: H96 Max "8K Ultra HD" (round case) PCB: RK3528_DDR3_8X4_V12 SoC: Rockchip RK3528 4GB DDR3 (8x Samsung K4B4G0446B) 64GB eMMC Samsung KLMCG2KETM WiFi: SKYWB8800 / SG-WB800E (AIC8800) Android 13, kernel 5.10.157, build RZX.V01.20240924.1740 I have TWO boards (same PCB revision, same markings). Both have DEBUG pads clearly labeled TX / GND / RX. UART completely silent in all combinations. Tried two different adapters: FTDI FT232 (ID 0403:6001) Silicon Labs CP2102 (ID 10c4:ea60) Both show up in dmesg fine, /dev/ttyUSB0 created, picocom opens. When powering device on — silence or garbage at all baud rates (115200, 230400, 460800, 921600, 1000000, 1152000, 1500000, 2000000, 3000000). Soldering done by a professional, crossover connection: adapter TX → board RX adapter RX → board TX GND ↔ GND VCC NOT connected (device powered separately) Loopback test on adapters works — adapters are OK. Devices are alive — Android boots normally, AIDA64 shows everything fine. Tested on both boards with both adapters — silence everywhere. Only garbage appears when physically jiggling wires (clearly body static, not device signal). My hypotheses: Vendor disabled UART output in stock loader/TPL for boot speed TX/RX pads repurposed as GPIO (LED / IR / etc.) DEBUG pads are actually NOT UART but JTAG/something else UART works but on some non-standard baud rate In fensoft U-Boot defconfig (https://github.com/fensoft/rk3528-tvbox) I see: CONFIG_BAUDRATE=1500000 CONFIG_DEBUG_UART_BASE=0xff9f0000 CONFIG_DEBUG_UART_CLOCK=24000000 Meaning fensoft uses this UART on similar boards. Why doesn't mine work? Background: spent 3 days trying to PXE boot Armbian. U-Boot (Ilya's + fensoft) works, TFTP/NFS works, kernel loads, initrd loads, DTB loads. But after booti the kernel dies instantly, so I need UART to see panic message. Tried many DTBs: evb1-ddr4, evb2-ddr3, android-native, nanopi-zero2, armsom-sige1, vontar-dq08, even stock Android DTB extracted from boot.img — all silent. Anyone experienced this on H96 Max RK3528 DDR3? Any way to force UART enable via some fastboot/adb command on Android before reboot? Attaching photos: PCB with RK3528_DDR3_8X4_V12 marking Close-up of DEBUG pads with soldered wires SG-WB800E WiFi module Thanks in advance for anyone who reads this!

Help needed (previous update): What should be edited is this file? sudo pico arch/arm64/boot/dts/allwinner/sun50i-h313-x96q-lpddr3.dts Thanks in advance.

@xuyitao Did your build pass? Can the NPU handle Ollama?

As a workaround I installed Armbian_community_26.2.0-trunk.732_Orangepi3b_trixie_vendor_6.1.115_minimal .img.xz and USB is OK, anyway ethernet is functional.

@fensoft I am using your current image 3.0.0_r2 in H96 Max M1 with USB Hub + USB to Ethernet adapter successfully. Its really energy efficient solution which can run 24 x 7 without costing much. However I am trying to set this up on a dq08 box with 4 GB/64 GB Model. I am able to install dq08_ha_supervised_3.0.0_r2.zip without any issue. However due to recent support changes from the application, I am unable to continue further with the setup. I tried to install docker version to set this up but getting error "invalid argument: in-kernel BTF is malformed (1 line(s) omitted)". Not seeing much on this error in the interwebs but there are suggestions that this could be due to old kernels/. Is there a way we can update this kernel and OS to Armbian Trixie or will it brick the dq08? Have you got a chance to look at the updated installer image?