Latest Armbian - 25.5.0-trunk.185 no longer booting on Rock 4b

[Gabriel Nicolae Lup]

Hello guys

Been using Armbian on my RockPi 4b as a media server for few months now and took every update up until the latest 25.5.0-trunk.185

Now this was made with apt upgrade command and after I reboot, system no longer boots at all, freezing on initial boot stage.

No HDMI sign at all also.

If I plug an old armbian that I have on sdcard, I see U-Boot screen for few seconds, then reboots (basically bootloop).

OS was installed to internal eMMC.

Downgraded back to Armbian_community_25.5.0-trunk.131_Rockpi-4b_bookworm_current_6.12.16_minimal from github and all is running fine, but again after upgrade command, same thing happens.

Not that skilled to debug this further.

What I remember is that I saw in the upgrade log that kernel was updated, so thinking it might be that.

[Torgar]

The same thing happened with rockpi-4cplus. This happened after upgrading from kernel 6.12.17 to 6.12.18. After reboot no response and fail to boot. Only uses the eMMC chip.