Custom TV box with S905X3 doesn't boot

[FrankOs_21]

Hello Everyone,
I'm an armbian user since 2020 and i'm having issues trying to run armbian on a custom TV box made from a company that sell iptv solutions for business.
I've got this from one of the company manager as the device was failing HDMI and didn't want to bother themself with RMA, i've got few but really they trew out like 50 pcs.

 

The device has a Amlogic s905x3 soc with 2gb Ram and 16gb memory.

1 usb 2.0 and 1 usb 3.0 otg, micro sd slot and many other component.
wifi and bluetooth board and it's PoE.

I know that S905X3 isn't supported very much but i've seen some posts from users succeding, so why don't try to let armbian run?

Tested with this img:
Armbian_24.2.0_amlogic_s905x3_jammy_5.15.141_server_2023.12.07.img.gz

tried different dtb but nothing starts, i do believe the bootloader is locked and i can't find the old aml_autoscript.zip file to flash.

it has the recovery button behind the AV and it works to boot on recovery only, and with TWRP i did a full backup of the system.

Tried with terminal to "reboot update" but it stuck on boot logo.

here some few details, if somebody is interested on giving me an hand i can disclose more details about the device.
 

[    4.808428] ro.boot.oem.key1=ATV00104319
[    4.808436] ro.boot.build.expect.baseband=N/A
[    4.808442] ro.boot.selinux=permissive
[    4.808448] ro.boot.dtbo_idx=0
[    4.808454] ro.boot.firstboot=0
[    4.808463] ro.hdmi.set_menu_language=true
[    4.808470] ro.wifi.channels=
[    4.808477] ro.allow.mock.location=0
[    4.808483] ro.build.expect.bootloader=01.01.180822.145544
[    4.808895] ro.boot.hardware=amlogic
[    4.808905] ro.boot.bootloader=U-Boot
[    4.809083] ro.product.cpu.abi=armeabi-v7a
[    4.809089] ro.product.cpu.abilist=armeabi-v7a,armeabi
[    4.809139] ro.hardware=amlogic
[    4.809168] ro.bootloader=U-Boot
[    4.809730] ro.board.platform=franklin
[    4.810076] pm.dexopt.boot=verify
[    4.810085] pm.dexopt.ab-ota=speed-profile
[    4.810095] pm.dexopt.install=speed-profile
[    4.810101] pm.dexopt.bg-dexopt=speed-profile
[    4.810108] pm.dexopt.first-boot=quicken
[    4.810218] ro.adb.secure=0
[    4.810231] ro.secure=1
[    4.810300] sys.usb.config=mtp,adb
[    4.810309] sys.usb.configfs=1
[    4.810495] sys.usb.ffs.ready=1
[    4.811106] log.tag.stats_log=I
ro.vendor.app.optimization=true
[    4.813516] ro.vendor.vndk.version=26.1.0
[    4.813527] ro.vendor.product.cpu.abilist=armeabi-v7a,armeabi
[    4.813535] ro.vendor.product.cpu.abilist32=armeabi-v7a,armeabi
[    4.813542] ro.vendor.product.cpu.abilist64=

Thanks

[SteeMan]

Known issue see the above thread

[FrankOs_21]

Hello SteeMan,
Thank you for the reply
I've been throug the post you linked and did many test, especially the guide made by Devmfc, tried the steps as per instruction on Github but I can't still boot from SD.
if i don't press the button it starts normally, if i do, recovery starts.

I did a backup of boot_emmc and bootloader, may be useful to understand if they used on their product a different bootloader?

unfortunately there's no serial pin so i can't debug from there.

thanks

Edited December 28, 2023 by FrankOs_21