After formatting your SD card to exFAT:
- Insert your SD card into your Switch
- Turn on your Switch
- Your Switch will ask to install a system update to support your SD card. Accept this and wait for the update to install.
Can my switch have exFat compatibility without having to update the system? Can someone explain what does number 3 mean? My switch firmware is on 2.0. I don't want to update and lose the 2.0 firmware. The guide (Section 2: SD Card Setup) tell me to update my system before I can make a backup of my nand in (Section 3: Safety Precautions). If I follow the guide then I wouldn't be backing up the 2.0 firmware and it would be impossible to downgrade right?