What is JKSV?

JKSV is a game save backup and restoring utility for Nintendo Switch Titles. It has other features, but in this guide we will be exploring the basic functionality.

Common Uses for JKSV:

1. Backing up important save files to a safe location (computer, hard drive, etc)
2. Copying saves back and forth from SYSMMC and EMUMMC
3. Backing up an Animal Crossing Island and Juggling more than one island on one console (make a back up in JKSV, delete the save file in atmosphere and make a new one, then backup that save so you can switch back and forth)
4. Dumping saves to edit on a computer application
5. Dumping saves to use with an emulator/restoring saves from an emulator
6. Copying a save file to another switch

General Info About Saves

To dump/restore saves from EMUMMC, launch EMUMMC and run JKSV

To dump/restore saves from OFW , run CFW SYSMMC and then run JKSV

Profile Saves: 99% of all save files, use this for almost every game

Console Saves: For ACNH islands, use this to backup or restore an island

BCAT: For ACNH special events (ex: Christmas, Easter, etc.)

Save files will be dumped to the JKSV folder on your SD card. From here the files can be copied to a computer or another switch as needed.

How to back up a save with JKSV

Launch the firmware that you have the save that you want to back up (CFW SYSMMC for stock saves or CFW EMUMMC for emummc saves)

Open JKSV3.

 Press A on the profile you would like to back up a save file from (or device for ACNH)

Press A on the game you would like to back up a save from

Press A on "New Backup"

Name your backup

Your save is now backed up to the "JKSV" folder on your SD card

 

How to Restore a Save

Load the EMUMMC or SYSMMC that you would like to restore your back up to

Launch JKSV in the same manner as above

Press A on the profile you would like to restore to

Press A on the game you would like to restore

Hover over the save file you would like to restore and press Y

Follow the onscreen instruction to complete the restore