Oh that arrogance! "/thread" How nice.
You are actually suggesting to prefer
"Google it!" over first trying more sensible things than downloading stuff (system title CIAs in this case) from random locations on the internet… while believing everything is said with your idea.
As I don't share your opinion and you thankfully don't have moderation privileges to end or lock a thread, I'll just continue anyway.
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I have no idea where the idea of sacrificing personal data ("Format System Memory") comes from. Deleting stuff does not repair any damage on the firmware. Why would it? Seriously. I hurts reading this again and again.
"Something did not work, so I chose to simply delete everything, but it still won't work." → 
Please elaborate: Did you try official system update
after deleting title and ticket in FBI? That is what I just did. As expected the missing system title was repaired by the updater, no problems, no searching the web, no big deal.
First thing to try on missing system titles is an
official update. Also try official update through
Recovery Mode if the updater fails.
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Before doing anything of the things below:
- Check your SD with h2testw or F3. Only use a checked SD
- Backup the NAND. Some people think backing up the NAND isn't needed when something is already wrong. More backups are always better.
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Other options besides
"Google it and download the CIA file from some shady location" would be
restoring a known-good NAND backup (safe, not forced or full). This might make installed titles disappear (missing tickets) but this can usually be repaired by faketik. On the other hand, you just nuked your profile anyway, so a restore could bring things back (unless you didn't remove the SD: As far as I know it will destroy the installed titles if it can).
Last option I can think of would be
CTRTransfer, which I wouldn't recommend unless everything else fails.
CTRTransfer is often casually suggested, but it is an extreme thing (like NAND restore also is) and often overkill.
Once you have hopefully repaired the system: Please backup the NAND again and store the image in multiple locations.
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Good luck and have fun!
@
Psionic Roshambo:
@
Xdqwerty:
