I need a correct firmware for R4

[maysavahabi]

Hello everyone would you help to download the correct firmware for my Ds r4? I accidentally format my both SD cards.
One of them is R4ids (DSI/ DSL/ NDS)(about 2008) and another is R4sdhc v2.10t (2010) View attachment 314065

 

[Nikokaro]

Hi, I'm the one you contacted earlier. I may have found the firmware for one of the two flashcarts, the red one:
https://web.archive.org/web/20130117142533/http://www.r4sdhc.com/r4tsdhc.asp