Install newer version of u-boot (Odroid HC4)

[barish]

I am running bookworm on my Odroid HC4, upgraded from buster. USB stopped working, which I believe to be U-Boot related. So I am looking for a newer version of the U-Boot package "linux-u-boot-odroidhc4-current", which is at  26.2.1. I tried to change the apt sources to trixie and apt updated, but apt doesn't offer me a newer package. I am not so keen on compiling it myself, so is there a way of finding/downloading/installing a newer package...?

[usual user]

It happened a few days ago that I rebuilt my complete firmware package to try something with another device. An HC4 firmware binary also automatically falls out in this process.
If you like, you can put it on a microSD card (dd bs=512 seek=1 conv=notrunc,fsync if=u-boot-meson.bin of=/dev/${entire-device-to-be-used}), place the prepared microSD card in your HC4 and start it with the boot button pressed.
Check whether it meets your expectations, and if all tests are successful, you can transfer it to the SPI flash.