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Yes, if you have used a R4 card in your 3DS and you connect to wifi with it Nintendo would see that and they can brick you system, brick means that they can block your 3DS example: you used an R4 and then you connected to a wifi, nintendo saw it and they bricked your 3DS, in the start you cant notice it but after you shut down your 3DS you cant open it anymore. but thats only for the 3DS and DSi, for the DS and DS lite R4 cant do anything.
r4 card is 100% safe for your console. It will simulate the original cartridge to work on the system. the console won't recongize it.
What else can I help you with?
Do r4 game cards work on 3ds?
All r4i cards work on 3DS. But you need to understand that the R4 cards does not work on the 3DS 3D games and only for DS games. For the first generation R4, it does not work on the cards, please refer to 'R4i cards' , 'Acekard 2i' , ' M3i zero'.
Are r4 cards illegel?
yes
Where can you buy a r4 card for 3ds?
there are a lot of online sites to sell those r4 cards, just be careful of the R4 clone cards, there are many cards called R4 in the market, if you plan to buy a r4 card for your 3DS, i would recommend you buy r4i gold 3ds or supercard dstwo, both of them are working great on your 3ds.
Do you have to pay to download games on R4 cards?
no
Where do you get the R4 for DS?
R4 and similar cards tend to be bought online (no longer on eBay or Amazon).
Does it matter what color your R4 ds is?
No. white R4 cards are older, but should have same functionality.
Do r4 cards work on dsi's?
yes, but you have to get a R4I card instead of just an r4 card
Is there another legal alternative to r4 cards?
nope
Can Game Boy colour games on r4 cards?
No, the R4 will only play Nintendo DS Games and Homebrew.
What problems are there for r4?
These are the main disadvantages to the R4: * There will be no more updates; The official R4 team disappeared. * As a result, the R4 isn't being produced much, supply is running out. * The R4 does not support SDHC MicroSD cards (it supports up to 2GB)
Were do you get an r4?
You can buy R4 cards and many versions of it on many websites. Be warned, though, that most of the ones that post on Answers.com seem to be spammers only keen on promoting their own site. There are many 'types' of R4 and R4i cards out there, and many of them are fakes or clones of each other. There are two impartial websites out there that seem to give good discussion about the different types of R4 cards.
Where can you get an R4 for your Nintendo DS?
You can get R4 cards at your local market or on the internet, however you can not get them at your local shopping center because they are illegal.
