Yeah, except he downgraded to 7.0.0
If they are using exFAT on their SD card, have them copy Atmosphere over to a different (FAT32) SD card and try to boot. It's more likely that their issue is one of hitting 7.0.0 in ChoiNX rather than 7.0.0 (exFAT).
Use GUI Format to format an SD card as FAT 32. Download Atmosphere, extract to SD, boot Fusse-Primary. See if the Switch boots.
If that doesn't work, have him manually downgrade to 6.1.0 and then follow my instructions from earlier.
Last edited by blahblah,