It appears that users are being banned from 3DS online services, en masse. There's no direct cause right now, and seemingly no linking factor. This post is meant as an announcement for users, to be wary, and that GBAtemp will keep you updated as soon as more info rolls in. If you have been banned, please post in the thread below, and we will try to keep tabs on the situation. To be extra sure, it can't hurt to turn off your 3DS's wireless capabilities, so you might as well do that for now.

Edit 1: it appears that e-Shop access isn't restricted if you are banned.

Edit 2: A caller to Nintendo reported that the company said this ban is due to "unauthorized software usage".

Edit 3: @LinkSoraZelda is collecting info. Contact him if you are banned.

Edit 4: Click and fill this out if you were BANNED.

Edit 5:

[11:28:19 PM] Clector: Curiously the page of that error in Nintendo Support website used to have this:Error Code: 002-0102 Situation: You receive the error code 002-0102 when attempting to connect online. What to Do: If you continue to experience this issue, please contact Nintendo by calling 1-800-255-3700. Representatives are available from 6 a.m. to 7 p.m., Pacific Time, 7 days a week.
[11:28:44 PM] Clector: Now it says this: What to Do: If you are experiencing this error code, your Nintendo 3DS family system has been banned due to unauthorized system modifications, play of unauthorized versions of one or more games, and/or connecting to the official game servers in violation of our terms of service. This ban is effective immediately and requests to remove the ban will not be processed.

Thanks to @Joom

Edit 6: Aurora Wright is taking another poll here

Edit 7: Not a lot is known but

There are bans happening, they are happening in all regions.
All models in the 3ds family seem to be candidates for banning.
There is no indication they will be anything other than permanent.
A game or DLC may end up being a cause but there is no one game or DLC that ties banned users together.
The cause or causes are as yet unknown, though it does seem to be related to modifications. Reports of unmodified consoles being banned are as yet unproven.
The banning is tied to something you can modify, thus you can unban. Doing it while the causes are unknown is likely only going to burn a working token though.
There are semi public tokens out there, Nintendo knows how to browse a forum as well as you so don't be surprised if they also get banned.
It does not seem to be limited to a given base firmware version, it does not seem to be limited to any one custom firmware type. There is some speculation that older hacking methods are not being hit as hard but nothing to confirm this yet.
The data collection could have happened this morning, or it could have been months in the making.
A simple check to see is checking your friends list, by itself it will not ban you.
Some are turning their wifi off. It is doubtful this will be of much use and being banned does not seem to come with any downsides that wifi being off will not also mimic.
You may have escaped a ban thus far but it could happen at any point. It could be that they stop in the future, it has happened on other consoles, but you would be living in hope rather than any particularly well founded logic.
The bans are done on the side of Nintendo's servers rather than your 3ds so there is also that.

If you hack your devices/games then their online functionality may be troubled. This has been known for decades, Nintendo seems to have finally caught up with that.

Please continue to share information with the thread or the links in previous edits.

Update 5/30

HOW TO HELP AVOID BANS (we think)​

If I was to guess from the information we have gathered since the ban wave, it seems likely that they are looking for TitleIDs that don't exist. Homebrew shows up in the activity log as the Download Play app, and fake CIA's show up as just ??????. That last one is what I'm guessing they are looking for.

If you are not banned yet or before you unban yourself, go into your friends list, choose settings, and turn off the option to "show friends what game you are playing." This will prevent you from playing games online with friends, so turn it back on when you wanna game with someone, but ALWAYS keep it off when running custom CIAs. Next, go into system settings -> internet settings -> spotpass, and turn off BOTH options. One is auto download software, the other sends system information to Nintendo. Also, make sure you don't have your favorite title set to something stupid like FBI or any other non-Nintendo CIA.

Its VERY likely that these options are what tipped off Nintendo, but we aren't 100% certain yet. The amount of banned people that had one of these options turned on was over 80% for each. If I was to assume that some of those people overlap, its very possible (but not confirmed) that 100% of banned people in the survey had at least one of those options turned on. I personally had all of them off and I have TONS of reasons for Nintendo to ban me.... yet I am not banned (yet).

Another bit of advice: Only run custom CIAs when offline, and after you close them, run a "legit" game like Smash Bros. or something before shutting down or going back online. This way your most recent title won't show up as a fake CIA

Current Theories as to what causes a ban
​

* SpotPass Settings: 8 users out of 46 users that were banned have SpotPass completely shut off, or SpotPass only (no friends list visibility)
* Firmware Version (Luma, Nintendo): Literally all reports ranged from 10.2+, I can get exact numbers for this if you'd like, but all firmwares were affected.
* Firmware Type (A9LH, B9S): 44 of the 126 B9S users that answered were banned, pattern was mirrored for A9LH users as well.
* Homebrew Titles such as FBI, HBL, Luma Updater, Themely, and freeShop: Literally about 98% of users both banned and unbanned had some combination of these applications installed. However the common ones were: FBI, HBL, LumaUpdater and NTR.
* Save Modification: Equal amounts of users on both sides have reported save modification in some form, either with PKSM or another save editor
* System Transfers: 188 users said that they had not previously system transfered, 61 of those users were banned; 16 users said they transferred from a hacked console, only three of them received a ban; 13 said they transferred from a stock system and likewise were banned. The rest of our sample did not answer this question.
* Activity Log Information: A majority of those who have not been banned have said they had NOT cleaned their activity logs. I can get exact numbers for this too on request.

This information is just what I've found. Like I said, there could be variables or things we haven't even checked for yet. But these are things that I feel should be disproven, at least with the current dataset we have.

• From the information that we've gathered from some people that have used a packet sniffer such as WireShark, the following data is sent to Nintendo's online gaming servers as soon as the 3DS connects to the internet:
  • Amount of time spent online (timer stops when either the system is disconnected from the internet, or connection drops out, then starts the timer again in a new session when it reconnects to the internet).
  • The game being played and amount of time spent on it during that session.
  • The console's unique hexadecimal ID used in the LocalFriendCodeSeedB, along with it's RSA-signed signature.
  • The console's serial number in which is broadcasted from the SoC and is hard coded in the SoC.
  • Friend Code generated on the Nintendo 3DS system, if one has been generated.
  • Internet connection status (either online or offline).
  • The Nintendo Network ID, if there is one linked to it.
  • Even if the sending of SpotPass Information is switched off, or even hiding your currently playing games. It does not prevent the system from sending currently playing information to Nintendo's online gaming servers, it only hides it from your friends in your friend list (like being invisible on the forum, while mods and admins can still see you). Why? Because even people without a Friend Code on their system have been getting banned too!

• The following data is NOT sent to Nintendo's online gaming servers:
  • The data from the Nintendo 3DS's Activity Log. Oddly enough, while Nintendo does explicitly state that they collect Activity Log data, they're actually referring to their own server's Activity Log, which always tracks every console's online activity, and keeps a record of them that is stored forever. And is only collected in increments of data through a timer and a currently playing list.
    
  • Games or apps that have not been played, regardless if they're legitimate or not. You only get tracked when you're online and using that game or app.
  • Using games or apps while offline. Even though it is stored on the 3DS console's Activity Log, that data is NOT sent to Nintendo's online gaming servers.
  • Custom Firmware. Though we can't rule out the possibility of them releasing a 3DS update in the future that adds such function to collect MD5 hashes of files and FIRM data and send them to Nintendo online gaming servers (which would also be updated in a maintenance).

• Things that people think what happens with consoles, but really doesn't:
  • "LocalFriendCodeSeedB is transferred to the system upon doing a system transfer". This is false, the LocalFriendCodeSeedB remains on the system and does not move to another system.
  • "The console generates a LocalFriendCodeSeedB upon first startup". Again, this is false, the LocalFriendCodeSeedB is made during the manufacturing process at Foxconn. It is generated at the factory, flashed to the NAND flash memory storage, then created as an account on Nintendo's online gaming server and Nintendo eShop server immediately when being manufactured. It is absolutely impossible to generate a LocalFriendCodeSeedB and be able to connect to Nintendo's online gaming server and/or Nintendo eShop server, even if you knew the RSA generation key for it. You'd end up with Error Code 002-0102 "This console's online services have been restricted by Nintendo" if you even tried (the error can either mean two things: The hexadecimal ID doesn't exist on the server, or the request to access the hexadecimal ID has been denied which in other words... banned). So a LocalFriendCodeSeedB generator will NEVER happen! Because it's not worth doing, if it can't connect.
  • Switching off "Currently Playing" information. Once again, this does not hide your online activity from Nintendo's online gaming server, it only hides it from your friends.
  • Switching off SpotPass. Nope, this too doesn't hide your online activity from Nintendo's online gaming server, it only opts-out of receiving SpotPass data, sorry.

So pretty much the bottom line is, if anyone has been using custom apps and/or titles not installed through Nintendo eShop while online in the past, guess what? You're screwed! And it is only a matter of time before your console's unique hexadecimal ID in the LocalFriendCodeSeedB is banned from Nintendo's online gaming server. This will mean, your console can't access the Friend List or play any online functions in games.

If you have been online while using custom apps and/or titles not installed through Nintendo eShop and haven't been banned yet, that's because Nintendo hasn't caught up to you yet. They're still going through each unique hexadecimal ID's Activity Log on their server, and by Activity Log, I mean the Activity Log on their server, not the 3DS console's activity log. And it will be only a matter of time before you're banned too.

Thanks to @Platinum Lucario @MadMageKefka and @ShadowEO !

 

[Joshua Wright]

I'm on 11.3 (albeit on b9s) and I can access the friends list without needing to update my system.

It's a hit or miss I have two 3ds's both with b9s and 11.3 and one wants me to update to see my friends list (The system isn't banned)

 

[Todderbert]

My 2DS with 11.4 Luma AL9H is officially banned, never played an online game with it, just used the various tools to aquire backups. Waiting on my 3DS with boot9 11.4 to get the ban hammer. No big, so many advances in hacking that I'm sure it will all work out in the end. I have a few new extras I can play on.

 

[Joshua Wright]

My 2DS with 11.4 Luma AL9H is officially banned, never played an online game with it, just used the various tools to aquire backups. Waiting on my 3DS with boot9 11.4 to get the ban hammer. No big, so many advances in hacking that I'm sure it will all work out in the end. I have a few new extras I can play on.

You could deal with any ban with how many you have.

 

[redstarz]

My 2DS with 11.4 Luma AL9H is officially banned, never played an online game with it, just used the various tools to aquire backups. Waiting on my 3DS with boot9 11.4 to get the ban hammer. No big, so many advances in hacking that I'm sure it will all work out in the end. I have a few new extras I can play on.

>that Majora's Mask n3DS

ok, i am jealous now

 

[drsalvador555]

My 2DS with 11.4 Luma AL9H is officially banned, never played an online game with it, just used the various tools to aquire backups. Waiting on my 3DS with boot9 11.4 to get the ban hammer. No big, so many advances in hacking that I'm sure it will all work out in the end. I have a few new extras I can play on.

And I thought having 2 2DS and a N3DSXL was more than a person would really need. Two words to describe that level of 3DS collection? 1) Obsessive, and 2) Prepared

 

[DEEP_STEEL]

Hey guys I was wondering is it safe to update my N3DS to cfw , I am still using stock firmware and not banned....

It it seems u guys are misunderstanding, I mean to say that I want to update my 3DS to cfw, but with all these ban wave going on am not sure wheather I should update to cfw or not....

 

[Trojaner]

I mean to say that I want to update my 3DS to cfw, but with all these ban wave going on am not sure wheather I should update to cfw or not....

You have to decide for yourself ... Console Modding is always a Risky thing ... TOS, Bricking the Console ...

 

[Elveman]

It it seems u guys are misunderstanding, I mean to say that I want to update my 3DS to cfw, but with all these ban wave going on am not sure wheather I should update to cfw or not....

and that's the final result Nintendo is looking forward to.
Holy Arceus, 42 people watching thread regarding 2-week old event

 

[pixelmasher]

and that's the final result Nintendo is looking forward to.
Holy Arceus, 42 people watching thread regarding 2-week old event

They came to watch the 3DS collection.
https://gbatemp.net/threads/update-regarding-the-recent-3ds-banwave.471781/page-465#post-7384204

 

[J0wnz]

I did the unban method with someone who published his localseed, but a friend told me that i can get a very "hard" ban, I mean, strong ban like blocking the console or internet for ever (serial ban )

Is that plausible? Thank you!

 

[AkitoUF]

Well in the end I never got banned. I don't play online a lot but I did check my friend list a few times.
Are the bans still going?

 

[pixelmasher]

I did the unban method with someone who published his localseed, but a friend told me that i can get a very "hard" ban, I mean, strong ban like blocking the console or internet for ever (serial ban )

Is that plausible? Thank you!

Yes. Permaban/Hyperban.

Well in the end I never got banned. I don't play online a lot but I did check my friend list a few times.
Are the bans still going?

Apparently. I wouldn't worry about it. You are either going to get banned or not banned. It's all in Nintendo's hands.

 

[Joshua Wright]

I did the unban method with someone who published his localseed, but a friend told me that i can get a very "hard" ban, I mean, strong ban like blocking the console or internet for ever (serial ban )

Is that plausible? Thank you!

That type of ban was only handed out during the S/M banwave a few months ago, Maybe again if people pirate US/UM and play online

 

[Piomasaki]

Well here's an update for my consoles.

N3DSXL still banned (didn't expect that to undo itself)
2DS still not banned (yet)

N3DSXL was put on cfw literally 2 weeks before the ban started on the 24th, 2DS has been on CFW for a year.

Differences are online use that I can tell between my 2 consoles. 3DSXL was online (internet) the 24th, and a few days before, not in between. Last time it was played online was a week before the 24th, smash Bros, about 4 matches, which is all it ever played online, no cheats or mods but not a legit CIA. 2DS was not in use, but internet enabled for the week up the 24th, last used online play months ago, it's my son's.

Spotpass fully enabled on both, internet enabled on both, both sleep, hardly ever turned off.

Really the only difference is time of use leading directly up to the 24th, mine was being used heavily, internet on but not playing online, vs my 2DS was sleeping in the week leading up to it, son gets it depending on behavior, it wasn't great that week, guess he lucked out lol.

Both have used freeshop but neither have ever run mods or cheats online.

Neither have ever played Pokemon online, 2DS played it for 10 mins months ago, N3DSXL never had it installed or inserted.

I think that covers it all. I'm not to concerned either way, we're not big on playing online anyways. I suppose I could use the friended from my son's if I needed to.

My wife has a 3DSXL that was never modded, so I'm sure it's fine, my mom also has one on BS9 and I haven't checked if it's banned or not, it was done around the 20th but hasn't been used to play games online.

 

[ChokingVictim87]

So my New 3DS is banned,and I can't update Pokemon Moon to the latest Patch for some reason either.

2DS doesn't appear to be banned yet (touch wood) but I didn't have a Mii created to be able to use the Friend online option.Set that up and still no error.
Haven't registered for Eshop on there yet either.

One interesting thing to note: I played Pokemon Shuffle on my banned new 3ds tonight,all of the Pokemon are running away after one unsuccessful Pokeball.

Have they done something?

 

[RustInPeace]

So my New 3DS is banned,and I can't update Pokemon Moon to the latest Patch for some reason either.

2DS doesn't appear to be banned yet (touch wood) but I didn't have a Mii created to be able to use the Friend online option.Set that up and still no error.
Haven't registered for Eshop on there yet either.

One interesting thing to note: I played Pokemon Shuffle on my banned new 3ds tonight,all of the Pokemon are running away after one unsuccessful Pokeball.

Have they done something?

When were you banned? When you found out is different, and that is not relevant. I'll bump up my issue, my second N3DS XL was banned last night, as of midnight. It was on from 8PM to midnight, online all that time too. I had to reboot to due to a mistake in my Pokemon Sun save, and since NTR CFW 3.5 doesn't make soft resetting really doable when running plugins, a hard reset was needed. Did the hard reset, ban message appears.

 

[ChokingVictim87]

When were you banned? When you found out is different, and that is not relevant. I'll bump up my issue, my second N3DS XL was banned last night, as of midnight. It was on from 8PM to midnight, online all that time too. I had to reboot to due to a mistake in my Pokemon Sun save, and since NTR CFW 3.5 doesn't make soft resetting really doable when running plugins, a hard reset was needed. Did the hard reset, ban message appears.

Went online for the first time and checked tonight.Moon will not update at all and gets an error.

 

[RustInPeace]

Went online for the first time and checked tonight.Moon will not update at all and gets an error.

Did you check the console at any point before tonight? Right now it sounds like you got banned at an earlier date and have only just checked the console. And is the error code 002-0102?

 

[ChokingVictim87]

Did you check the console at any point before tonight? Right now it sounds like you got banned at an earlier date and have only just checked the console. And is the error code 002-0102?

Yep-thats the code.Ive been offline since this all started as I have been away.

 

[Reaga]

Now you guys have me paranoid. But just checked my Friends, not banned (yet).

N3DS XL, 11.4, B9S 1.2, Luma 8.0
Spotpass settings off, Friends List not showing recent plays.