Resize partition for software BPI-R2

Hi
I tried to enlarge the partition to install the software and failed. I am using the firmware downloaded from this site https://downloads.openwrt.org/releases/22.03.2/targets/mediatek/mt7623/openwrt-22.03.2-mediatek-mt7623-bananapi_bpi-r2-sdcard.img.gz
The procedure https://openwrt.org/docs/guide-user/installation/installation_methods/sd_card is not applicable - there is no device loop. I also tried the procedure according to https://openwrt.org/docs/guide-user/additional-software/extroot_configuration - the commands are executed without error, but the system uses the original partition for installing the software without changing it.

I'm already desperate. Please, how to increase the partition?? I am sorry for my english