B550M-K : Can't register motherboard, I'm getting "Incorrect Serial Number" !

[bdahoumane]

System: Mother Board
Battery or AC:
Model: B550M-K
Frequency of occurrence:
Reset OS:
Screenshot or video:
========================
Detailed description：
I can't register my B550M-K mother board,
I got "Incorrect Serial",
I tried many times,
Thanks for your support.

[GEEK_ASUS]

Hi there,
Please refer below FAQ to find the SN for your MB.

How to find product Serial Number
Because here we mainly discuss laptop related issues.
If you have further questions about the MB, you may contact ASUS's local call center to have further assistance.
ASUS - Contact UsThank you.