there isn't my card in that list

 

thanks! i'm gonna try it right now

 

tryedn nothing :/ the black screen with the error text.. if it can help, card is recognized as spongebob.. i'm gonna try with http://www.r4isdhc.hk/

 

What you've likely updated is the kernel. You may also need to update the firmware, by using either a <4.5 3DS, or an old Nintendo DS. You can grab that from here:
https://web.archive.org/web/20131219152154/http://down4.nds9.cn/fwupgarde3DSV7.0.0-13.zip

 

ok, i have a ds lite, i'm gonna try

 

I've had the same problem with a happybox V2.0 (the red one). I've upgraded the firmware to the latest version (copy all the firmware files to SD, run and wait a while on the loading screen until a message appears telling me it's upgraded), installed the latest kernel, and it gets stuck on the loading screen with a message telling me I have to upgrade the firmware.

 

yes, that error.. i bough it from a flea market.. i was able, in the past day, to start it on my ds lite, but i only see icon and no text, now nothing, i tryed with:

https://web.archive.org/web/20131219152154/http://www.r4isdhc.com/download_white_new2013/
with this also on the root: https://web.archive.org/web/20131219152154/http://down4.nds9.cn/fwupgarde3DSV7.0.0-13.zip
and wit this: http://www.r4isdhc.hk/download_white_new2013/index.htm also with the upgrade in the root, still loading on the ds lite, still error with 3ds

 

You only need one (extracted) archive copied to the root of the SD card, either the fw upgrade or the kernel.
Try copying the fw upgrade only, then loading it on a DSlite, then waiting for a message telling you the upgrade was successful.

 

i tryed on ds lite with only the fwUpdateAll_V7.00.nds, still loading, nothing happen after some minutes.. i'm gonna try all the firmware from http://www.linfoxdomain.com/nintendo/ds/

 

Have you tried another MicroSD card?
Is it formatted as FAT32?
Check disk manager and see if there are any small partitions in front of the main one.

Just tried updating my old R4 Gold Pro, and ran into the same issue. Turns out I was using a MicroSD card that I had an emuNAND partition on from using my Gateway with it. After deleting the partition and copying the kernel to it, it now works fine.