How does It Work?

It is possible to assume how old a Nintendo Switch is by its serial number.
This website allows you to determine if your Switch is a patched unit or not by inserting the first 10 characters of your serial number (prefix included).
The full serial number of your console is not collected by this website!


If you've found this website useful, consider making a small donation so that I am covered with hosting/domain expenses.
ETH: 0xAeB01548aF7B55fAd71d339E6F91699F4abEB3EC


All the serial numbers data used in this website is publicly available on the GBATemp forum.



  • Added FAQ section in the home page
  • Updated About page


  • Adding Korean SN