OK, a link to google drive - CW-NAS-N5105-23.4.28.iso (ISO file I got from seller).Could I ask you to share it again, the link expired, thanks.
A few notes:
- it has a typo in start script - so if you boot from this ISO, you need to execute flash manually. But if you just need a *.bin file - it's fine, just extract it.
- I don't know if it makes any difference, but my motherboard is black