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[WRITE-UP] Upgrading my modded Switch - ExFAT, Backups, OSX and more!
Ok so I spent most of yesterday learning about Switch hacking and unfortunately I got stuck many times along the way so thought I'd document my issues and solutions here.What I started with:OG Switch on 6.0.1SXOS - I didn't check the version but over a year oldexFat Formatted SD Carda Macbook (noting here as below you'll see this had it's own variety of problems)What I wanted to acheive:FAT32 SD CardCreate an Emunand with the newest firmware supportedKeep OFW on sysnandKEEP CFW OFFLINEInstall Backup files without all the hassle of splitting files for FAT32Prep:I already had a clean NAND backup so didn't need to repeat thisBackup all other SD card contents to my hard driveFormat the SD Card to FAT32Create EmunandDownload the latest version of SXOSBoot into SXOSUse Create Emunand features to create a hidden partition for EmunandPower OffPROGRESS By this stage I had a Fat32 SD Card with Emunand of 6.0.1 (same as sysnand).Upgrade the Emunand firmware to 9.2.0Insert SD card to computerDownloaded firmware 9.2.0 from a reliable sourceDownloaded ChoiDujourNX.nroExtracted firmware to /firmware directory on SD CardCopied ChoiDujourNX.nro to /switch directory on SD CardSafely eject and put the card back into the Switch, boot into SXOSFrom the Album, launch Choi but found that the software was not foundSOLUTION: This is a Mac problem, and what I had to do was run the command - TXNAND is the name of my SD card and might be different for others:sudo chflags -R noarch /Volumes/TXNANDBoot back into SX-> CFW -> Album -> Choi is there now, but the firmware folder is not available - showing as a white icon that can't be selectedMore reading reveals that the command should actually be:sudo chflags -R arch /Volumes/TXNANDLesson learned, and from now on assume that everytime I copied anything from Mac to SD card, I'd run that command and then eject the cardFrom here, once again back to Choi, and this time the firmware directory reads.I select the exFat version (no real need but just my existing 6.0.1 was exfat). From what I understand about this, is that the exfat version installs the exfat driver - this only really needed if have an exfat sdcard, but otherwise makes no difference.Anyway, Choi worked now and installed very quicklyI rebooted but all I got was a BLACK SCREEN! I panicked a bit here but I just held down the power button for a bit. Then tried to turn back on with power + Vol Up held and was able to get back into SXOS.With a sigh of relief, I started trying to figure out where I'd gone wrong and figured it was because I installed the exfat version of the firmware. So....I went back all the way to deleting my emunand (which also formats the SD), copying SXOS back to the card, creating emunand again, copying Choi and firmware and installing again, but this time the non-exfat version. SAME PROBLEM!I kept digging and went over the process again until it finally occurred to me that I was trying to run fw 9.2.0 on SXOS 2.9.2, but it's