Every volume group must have a unique group file. You need to look at all (well, both) of your pre-existing group files and make sure that the minor number is different. I would expect that vg02 may already have a group with 0x020000, if so, you must pick 0x030000 or 0x010000 or whatever. And notce that the minor number has zeros, you show a leading capital O. And there are 4 trailing zeroes, not three as you show.

Do a "ls -l /dev/vg*/group" after your mknod to be sure that you have it right.

I would then use the preview option first:
vgimport -p -v ...
This won't change anything but will detect almost any errors. If that looks good, then do the real vgimport.

Then vgchange looks good.