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The 1.6.3 series of updates (including 1.6.3b/c/h) focused on major stability and quality-of-life improvements: Optimization: youtubers life omg edition nspupdate 163rar
163.rar likely refers to a scene release numbering – the actual version may be v1.6.3 or v196608 (internal title version).Select "Install from SD card," choose your update file, and install it to the SD card. Installation (Emulator): Install Files to NAND Locate the 1.6.3 update NSP and click "Open." Select "Install from SD card," choose your update
Downloading game updates from unofficial repositories is a violation of Nintendo’s Terms of Service and may constitute digital piracy. To ensure your console's safety and support the developers, it is recommended to update the game through the official Nintendo eShop Select "Install from SD card