Digisurv-(usa)-nswtch-nsp-update103-ziperto.rar Site
If you are using an emulator like Ryujinx or Suyu , you can typically install the update by going to File > Install File to NAND and selecting the .nsp file.
If prompted for a password, it is almost certainly ziperto.com (this is the standard password for that site). DIGISURV-(USA)-NSwTcH-NSP-Update103-Ziperto.rar
To use this update on a modded Nintendo Switch, you need an installer like (highly recommended for simplicity) or Tinfoil . Using DBI (USB Install): Connect your Switch to your PC via USB. Open DBI on your Switch and select "Run MTP Responder." If you are using an emulator like Ryujinx