BPI-M3 does not boot up from emmc

Hi again, finally i got this litte computer boot from sd again but now i can get the banana-pi to boot from emmc

mydevice: /dev/mmcblk0 = SD-card /dev/mmcblk2 = emmc os: armbian bulleye kernel 6.0.9-sunxi

i know 3 ways to copy an image to emmc

first: armbian-install ← no option to copy to emmc armbian-config ← copies to /dev/mmcblk0, overwrites/destroys sd-card

work-around in /usr/sbin/nand-sata-install line emmccheck=$(ls -d -1 /dev/mmcblk* | grep -w ‘mmcblk[0-9]’ | grep -v “$root_partition_device”); replacd by emmccheck=‘/dev/mmcblk2’ tool works fine now and copies correctly but banana-pi does not boot up from emmc

second: copy manually from usb-stick to emmc be doing dd if=image.img of=/dev/mmcblk2 bs=10MB status=progress ← copied fine as well but effect is the same: banana-pi does not boot up from emmc

third: curl -sL https://github.com/BPI-SINOVOIP/bpi-tools/raw/master/bpi-tools | sudo -E bash - bpi-copy imag2.img ← copied image to /dev/mmcblk1 (this device does not evene exist) bpi-copy image.img /dev/mmcblk2 ← says success as well and banana-pi does not boot up from emmc

do i do something wrong ? any suggestions / tips to make work ?