Homebrew Ndsl homebrew files need (R4 upgrade)

[Fast_SaW0]

So i found this Nintendo ds lite with the R4 (R4 Upgrade exc...) without the site link (Photo below) and a 4gb micro sd card. When I tryed to boot it, the screen was locked at the "loading..." process like forever. Then i opened the root of the sd card and there was like files from another r4 card edition, so i’ve searched for hours working files for the "R4 Upgrade" without any success. So is there a person that could load working files for it or a site that contains that type of supported file?Thanks a lot!