Is this possible? I was reading that ChoiDujourNX can update it, but it was all on 5.1. I'm on 1.0 firmware and using SXOS 1.9, and am tired of trying to figure out splitting my xci flies. Anyone have a guide on this?

There's no way to bypass this and just install the exfat update? I ask as I'd like to stay on 1.0 if possible. Thanks for your response!exFAT is supported on all firmware except 1.0. If you're on 1.0 and you want exFAT, you will have to update your firmware past 1.0. Usage is pretty straightforward; download the .NRO, slap it in your Switch folder, and run the homebrew. The actual challenge is downloading the firmware update files to use with it since its a firmware installer not downloader. And since those files are considered copyrighted content, they must be obtained outside of this forum. However if you read through the ChoiDujourNX OP very carefully, the creator details several ways to obtain those files.

There's no way to bypass this and just install the exfat update? I ask as I'd like to stay on 1.0 if possible. Thanks for your response!
Huh ? exFAT for 1.0.0 does not exist.
It does for any firmware 2.0.0 and up.