Same error. Bruh, rom salvage awaits.
How it was. I copied everything from the memory card to the computer and carried out all the operations on it. I did not have a second memory card. That is, its (memory card) clean version was able to install Ever Oasis. Something wrong with my files, I believe...
From that [post #24], steps 1–4 is to determine if your main SD card is fake, faulty, or dying. The full Write + Verify has to be done on the card starting empty or else the result can't be trusted. If the report states "
The media is likely to be defective.", that card
must be retired. There's no point moving forward with a bad card as that'll just be a waste of effort and will further corrupt your savedata and files.
After the SD card's hardware condition has been sorted out where the card is determined to be still good or that it has been replaced with a good SD card that passes H2testw, steps 5
B–10
B fixes the
Nintendo 3DS folder by dumping intact titles back into CIAs, backing up their saves, supplying replacement CIAs for titles found to be corrupt, creating a fresh set of
title.db &
import.db by reinstalling those CIAs, and finally restoring the saves to complete the repair. After all said and done, you should finally be able to then install
Ever Oasis (EUR) on your rebuilt main setup.
Edit - Before you begin steps 5
B–10
B, it would be a good idea to keep a copy of the
Nintendo 3DS folder on your computer for safety. This is if you encounter an unexpected interruption while dumping those titles back into CIAs and extracting+decrypting their saves.