Topic: Super Smash Bros. for Nintendo 3DS Save Data Issue

So I've been enjoying Smash Bros.3DS and this happened, thinking it had something to do with the latest update 1.0.4. Today, again this happened and I haven't deleted the Save Data. What should I do?
Issue: https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpa1/v/t35....

You haven't deleted the update, have you? If you do that, then I think you get a similar message.

Try downloading the update again from the eShop.

First, I didn't delete the update data. Though, I'll try deleting the update and try downloading again...

So I did but it's no use.

Isn't there any other way like I could backup the SD Card to its previous state of, let's say, 24 hours?

Nope, this isn't Windows.I have to ask you a question, though. Have you tried other software that utilize the SD Card? What happens?

They are the same.

What actually happened was that during gameplay the game freezes, and both screens turn black with the following message on the touch screen:
SD Card was removed. This happens usually with me, don't know why though, and same does with each SD Card I tried.

I know this is not quick, & easy, but what I use to do(, & should start doing again) w/ my Wii digital games(VC, & WiiWare), & saves(disc, & digital), then later the exact same w/ my 3ds(I should do WU, too!) is copy all data possible from my systems to an sd card large enough for each system's library of games, & saves(1 sd card per system), then pop those same cards into my pc, & make a complete copy of them. If the sd cards ever became corrupt, or my systems needing formatting, I could restore everything possible, that I backed up.

When I would copy, I would name the destination folder primarily by a date code, preceded by a number, & followed by a key word, or a few to help me better identify the folder's contents. Ex: 001_05-03-2013party. In my example, "001" is the folder number I chose to name it(it also allows me to more easily display my backups in chronological order, because it is the first part of the naming convention), "05-03-2013" is the (calender) date, & "party" is the key word. The key word part I used mostly because of photos I had taken with the 3ds camera.

Just my thinking, but possible reasons for this are:
1. It's unlikely, but a possibility, that your (Smash) game card was manufactured with a defect that was nearly irrelevant, until the update might have mixed with it. That's just one possibility, & unlikely.

2. I have (accidentally) dropped my 3ds, or it fell out of my (shallow) pockets. On not-so-often occasion, while I am walking, with it in my pocket, either the game card comes out of the slot, or it comes loose, & I open up my suspended game to fine the system telling me the game card was removed, to return to the home menu. Yours might be experiencing something similar. Again, just a possibility.

3. Perhaps all of the sd cards you are using are physically damaged in some way(s), have improper formatting, have maybe a wonky file, or 2 on them, or the 3ds, or Smash can not properly interface with your sd cards due to size. Though that last bit about interfacing with the system, if that is how Smash saves, brings up a very interesting point that I was always under the impression games should not have full direct access to hardware, & instead pass communication through a layer(the 3ds operating system, or a part of it made for this purpose).

4. Maybe your 3ds operating system is corrupted. In this case, I would backup all data possible, then format your system. However, I wouldn't do this. It's an "Pull In Case of Emergency Only" kinda thing with me, so I don't suggest it to others.

5. Maybe it's just a random update, or system glitch.

These are all just possibilities, & I'm just typing these off the top of my head. I'm sorry I can't really help you. I'll help where I can, though. I imagine lots of people on this site would have more information, just like the responses above mine.

I understand what you meant. The same happened with me a couple of weeks ago, resulting in my hard gained collectibles of 200 hours deleted. Now it happened again. I just can't afford to keep on deleting my save randomly :/. And yes, I own the Digital Copy.

I believe that for digital games, you are able to go into the e-Shop, go to that particular game title, & click an option of some naming, to "repair" your game d/l. It might be your game is corrupted, & needs repair. I would suggest backing up your data (first), if you have access to a pc, then using the "repair" option in the e-Shop. Maybe that will work.

Thinking on this solution, it's also wacky, yet plausible that you may have another digital game that is corrupted, & needs repair, while it currently is causing destruction to any thing else on your sd card. This is just a theory.