: Boot your Switch into Custom Firmware (CFW). Launch the Homebrew Menu (usually by holding the R button while launching any installed game). Open Installer :
This document explains installing an update (NSP format) for Cardfight!! Vanguard EX on Nintendo Switch. It covers necessary files, prerequisites, and a step-by-step procedure intended for users familiar with homebrew NSP installation on modded or custom firmware (CFW) Switch consoles. This is for informational purposes only—installing unsigned or pirated game files can violate laws and terms of service. cardfight vanguard ex switch nsp update install
Keep in mind that official card updates for EX ceased after its launch period; however, the game remains the definitive way to experience the V-Premium format on a console. How to Download Cardfight!! Vanguard EX on Nintendo Switch : Boot your Switch into Custom Firmware (CFW)
Resolving crashes during the "V-BT06" card animations. Vanguard EX on Nintendo Switch