I edit the save, but I can't calculate the checksum.I tried using the 3DS tool but failed.https://gbatemp.net/threads/rune-factory-4-save-rehashing-tool-to-make-save-editing-possible.393302/ Is there a tool fix the checksum about RF4 for switch?
Yes,still can't go to recovery mode,start up display“an error has occurred.
Hold down the POWER Button to turn off the power,then turn it on and try again。
For help,visit support.nintendo.com.”