Upgrade Openwrt on Banana Pi BPI-R4

Hi everyone, I have couple of BPI-R4 and trying to upgrade pre-installed 21 version up to 23.05. I've tried to install a snapshot from here using this doc. I've tried both eMMC and Nand variants and get the same results - nothing is updated, even though all steps are successful. I've also tried to update firmware via LuCI - and still have OpenWRT 21 version.