R4 upgrade SDHC 3DS DSi Dual-Core Clone Firmware?

no sticker, does it come with a box? or just a black bare card? check the card pcb if there any name or website printed on it you can try .com 2013 kernel, 2014 kernel, .hk 2013 kernel and 2014 kernel

Hi Jibron, I have an R4 3DS Dual Core card from here: http://www.r43ds.org/products/R4-3DS-Dual-Core.html and the firmware can be found in their firmware section (under the r4 3ds firmware link on the top) and they have the firmware for the dual core cards. However, it will only work is you actually have that card. If you have a different card, the firmware will not work for you, as each card needs a unique firmware in order for it to work. Are you sure you have the dual core card? Can you check the website you bought it from, based on what your ordered, and make sure that you have the dual core? I don't know why it would not have a sticker, but the problem is definitely with you trying to the wrong firmware for it. Take a look at the images of the r4 type cards at the site below, and see if the one you bought matches any one of them. Does it look like the on in the picture below? I know there are different ones, with a bubble that has 2012 or 2014 in it, instead of new. But maybe that's the one below. https://s.yimg.com/hd/answers/i/e1b8b44941dd46838a18bd7997c62203_A.jpeg?a=answers&mr=0&x=1398627312&s=cdb4d4994ee0dcfaca9927d07b95ea1a

Now, about the r4i dual core card there are two version, one is the one from www.r4isdhc.com another is feom www.r4isdhc.hk , you can first try this two website firmware if still not work, maybe your card is the fake card, you should ask your seller for the right firmware... Also if you want to buy some genuine cards please view http://gamedepot4u.com/nintendo-3ds-ds-dsi-3ds-flashcard-c-65_78.html