OldLoader

Boot FIRMs from old entrypoints.

Instructions

Copy the FIRM of your choice to your SD card as boot.firm, then run OldLoader via the entrypoint of your choice (requires copying / setting up more stuff, ofc), done. Simple, no? Also keep in mind this is for advanced users only. Everyone else just refer to the Guide and get up to date on your 3DS hacking.

What this works with

OldLoader does not provide a proper boot9strap environment (regarding AES key and TWL setups) and also does not identify as such. For this reason, it will not run software that checks for (and requires!) a proper boot9strap environment, among those CFWs. It is really only tested to work properly with GodMode9, and it may or may not work with more stuff later (on your own risk, users). To the developers: Edits to the source that would fake a boot9strap environment are discouraged, as running b9s-only payloads the OldLoader-way may pose a significant bricking risk to the users.

Credits

Normmatt, for sdmmc.c / sdmmc.h
Cha(N), Kane49, and all other FatFS contributors for FatFS
Wolfvak for providing the FIRM chainloader and being a great guy
Al3x_10m for providing his assistance in testing this
Gelex for being of great help on countless occasions
The fine folks on freenode #Cakey
All 3dbrew.org editors
Everyone I possibly forgot, if you think you deserve to be mentioned, just contact me!