I have a 2011 PCG-81114L. I'm trying to find the exact model number. The info provided by Sony is incorrect about this - it says after 2009, the model will be right under the service tag. There is nothing there, and in fact, that label has no space on it where it could be.
Also, at least since Windows 10 upgrade, there is no Vaio Care app, which is the other way Sony says to find the model number. When I search for the app, I find a page on the Sony site with a link to download it. Clicking that link goes to an "invalid link" page.
So, Sony has wrong info in every way on this. Is there any other way I can get the actual model number? Would the BIOS have it? All this to buy a $45 memory upgrade, and Sony's incompetent handling of support info is making this impossible. Any help from people who actually know either where to get the app (and not from some skeevy third party download site), or how to otherwise find the real model number, please let me know.
I found another way - using Vaio Update, the help/version-info menu item. Which brings up model, serial number, service tag, even bios version. All good. Would be nice if it were possible to select and copy from that popup. So, immediate situation solved