http://forum.xitek.com/forum.php?mod=viewthread&tid=1167651&page=1&ordertype=1#pid47747769
(in Simplified Chinese.)
The new s/n is now named as ABCXXXX instead of 00XXXXX of before, where the header ABC is not a zero number anymore, see below for the latest production (left) against an older/previous one (right):
(