Failed upgrade to 8.21 on NanoPC T4

Update and upgrade

root@DietPi:/home/dietpi# apt update
Hit:1 https://deb.debian.org/debian bookworm InRelease
Hit:2 https://deb.debian.org/debian bookworm-updates InRelease
Hit:3 https://deb.debian.org/debian-security bookworm-security InRelease
Hit:4 https://deb.debian.org/debian bookworm-backports InRelease
Hit:5 https://fi.mirror.armbian.de/apt bookworm InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
root@DietPi:/home/dietpi# apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Listing package versions

root@DietPi:/home/dietpi# apt show linux-image-current-rockchip64
Package: linux-image-current-rockchip64
Version: 23.8.1
Priority: optional
Section: kernel
Source: linux-6.1.50
Maintainer: Armbian Linux <info@armbian.com>
Installed-Size: 219 MB
Provides: linux-image, linux-image-armbian, armbian-current
Armbian-Kernel-Version: 6.1.50
Armbian-Kernel-Version-Family: 6.1.50-current-rockchip64
Armbian-Original-Hash: 6.1.50-Sa294-Dc86f-Pce21-Ca63dHfe66-HK01ba-Vc222-Bc698-R448a
Download-Size: 41.7 MB
APT-Manual-Installed: yes
APT-Sources: https://apt.armbian.com bookworm/main arm64 Packages
Description: Armbian Linux current kernel image 6.1.50-current-rockchip64
 This package contains the Linux kernel, modules and corresponding other files.
 version "6.1.50" git revision "a2943d2d9a00ae7c5c1fde2b2e7e9cdb47e7db05" codename "Curry Ramen" drivers hash "c86f62e905cb6c4f" patches hash "ce216da673453349" .config hash "a63dfd4faffcc759" .config hook hash "fe661159ee64825e" variables hash "c22207b66dc5dd57157df2cd7b9c20559b2ed8ac44b9c3c3b9704002c06b8921" framework bash hash "c698747a3bfc6ef0"

N: There is 1 additional record. Please use the '-a' switch to see it
root@DietPi:/home/dietpi# apt show -a linux-image-current-rockchip64
Package: linux-image-current-rockchip64
Version: 23.8.1
Priority: optional
Section: kernel
Source: linux-6.1.50
Maintainer: Armbian Linux <info@armbian.com>
Installed-Size: 219 MB
Provides: linux-image, linux-image-armbian, armbian-current
Armbian-Kernel-Version: 6.1.50
Armbian-Kernel-Version-Family: 6.1.50-current-rockchip64
Armbian-Original-Hash: 6.1.50-Sa294-Dc86f-Pce21-Ca63dHfe66-HK01ba-Vc222-Bc698-R448a
Download-Size: 41.7 MB
APT-Manual-Installed: yes
APT-Sources: https://apt.armbian.com bookworm/main arm64 Packages
Description: Armbian Linux current kernel image 6.1.50-current-rockchip64
 This package contains the Linux kernel, modules and corresponding other files.
 version "6.1.50" git revision "a2943d2d9a00ae7c5c1fde2b2e7e9cdb47e7db05" codename "Curry Ramen" drivers hash "c86f62e905cb6c4f" patches hash "ce216da673453349" .config hash "a63dfd4faffcc759" .config hook hash "fe661159ee64825e" variables hash "c22207b66dc5dd57157df2cd7b9c20559b2ed8ac44b9c3c3b9704002c06b8921" framework bash hash "c698747a3bfc6ef0"

Package: linux-image-current-rockchip64
Version: 23.02.2
Priority: optional
Section: kernel
Source: linux-5.15.93-rockchip64
Maintainer: Igor Pecovnik <igor.pecovnik@****l.com>
Installed-Size: 95.6 MB
Provides: armbian-current, linux-image, linux-image-armbian
Homepage: https://www.kernel.org/
Download-Size: 53.4 MB
APT-Sources: https://apt.armbian.com bookworm/main arm64 Packages
Description: Linux kernel, armbian version 5.15.93-rockchip64 current
 This package contains the Linux kernel, modules and corresponding other
 files, version: 5.15.93-rockchip64.

Still no luck. No USB3 disk detected, even after reboot.
Any ideas what to do next?