In cfw progress guide deletes any save or files? I have 331 hour on zelda I don't want to lose it 

And now Im in the 8.1.0 and switch says for sd card i am need system update what can I do?CFW won't delete anything.
To backup everything, you want to create a NAND backup via hekate.

Update or format your sd to fat32 (but backup everything on the sd before you format it).And now Im in the 8.1.0 and switch says for sd card i am need system update what can I do?
And now Im in the 8.1.0 and switch says for sd card i am need system update what can I do?