For the newer "Slim" PS Vita (Model PCH-2000), the location changed slightly.
If you still have the original box your PS Vita came in, you are in luck. The serial number is printed on the external packaging. check ps vita serial number
If the console is working and you can access the menu, you can find the serial number in the settings. For the newer "Slim" PS Vita (Model PCH-2000),
: Right-click the Vita icon and select "Properties" . The serial number should be displayed in the properties window. If the console is working and you can
Different serial number ranges can indicate whether your device is susceptible to specific hacks or if it has a particular screen type.
If you don't see the icon, try installing the Content Management Assistant for PS Vita from the official PlayStation website if you haven't already.
If the serial number returns an error or "Not Found," it may be an older unit that has fallen out of the warranty database, or it may be a region-specific unit not recognized by your local support page.