Ok, ill try again and try to document each of my steps as much as possible this time.
I start off by formatting my SD card once again and loading the full backup i have on my PC that i did right after checking my SD card for faultyness.
Here is a picture of my homescreen. The games marked in red are games i installed with CIAs. I always did the install and delete option in order to save space, so ill need to redownload them again, but that isnt a big issue, because none of the games on the right have save files, because i havent played them yet. The red and blue marked one is the game in question with the corrupt save file. The green ones are ones i legitimately own and all except the two Picross games on the bottom right of the cluster, one in red and one in green, have save files.
i just now tried launching the cartridge game again but i got a DispErr again. This isnt a big deal though because i already finished the game and dont plan to play it again, so no worries about that one.
When checking the
Data Management menu to restore the backup i did before coming here the file already has no icon and when i select it it says it couldnt find any software.
The other guy told me to use Checkpoint to load in my backup so i went and grabbed the backup file from this directoy ( F:\Nintendo 3DS\229ead35b82e10f1be183f85bf4455d0\01b401184738b6c5534530340002544d\backup\001\0004000000187e00 ) and put it into the right Checkpoint folder, named it "Old Save" and tried loading it.
Checkpoint says it loaded the save successfully, so I start up the game and get a corrupted save message.
At this point you told me to do the SD card checkup, but i think i dont need to repeat that.
From this point ill try to do path B from
this guide you sent me.
Ive made backups using Checkpoint of
all games listed (some were never launched before so they probably wont show up because of that, but thats fine) and the exdata (though there isnt anything important on anyway (i think)).
After putting the CTRTransfer (Type D9) file into the gm9/scripts folder i hold START and power on the console. I navigate to the Nintendo 3DS folder and delete the import.db and title.db as instructed by the script.
I launch the script and do the "Rebuild 3DS Database" option, choose "Full" and then "Backup CIAs & Saves".
The storage test returns successful.
I then get
these three messages and im thrown back out.
At this point stuffs getting funky for me. In the gm9/out folder i find a signle cia for Kid Icarus Uprising next to the three other folders with <ID0>. And when opening the missing_files.txt its just empty.
i can see the two original backups i did, the one for shovel knight and the one for Picross 3D Round two, but the latter one is in a 001 folder whereas the former is in the 000 folder. i dont know if thats anything important or not.
i also have a "backpu2" folder where a whole lot more save files are but none of the IDs are coming up on the sites you posted.
By now, when i boot the console my homescreen is empty aside from the top row. All the games, CIA and eShop are gone.
Assuming that the only CIA with save files i have is Picross 3D Round 2 i load and install that using FBI.
(just a thought i just had: Is it important that i get the exact same CIA file that i originally used? I tried checking my browser history to find exactly where i got it but it doesnt go as far back sadly. when i reinstalled the game i just grabbed the next best i could find, i dont know if its the exact same version tho. checking the title ID on one of those sites its the european version but i tried reinstalling the US version instead. could that be (one of the many) issues?)
Anyway, after installing the game and lauchning it, it creates new save data. Data Management still doesnt recognize the software. Loading the save with Checkpoint returns the corrupt save error again.
This is basically as far as i came the other two attempts but ill try finding the european version again.
Update: AAAAAAAAAAHHHHHH i feel so stupid. it works now with the european version.
ill just rollback to my original full backup and get the right cia on this time. sorry for wasting so much time and i appreciate all the help and sticking through with me.