A: Use YSMenu for R4i-SDHC V1.4 . The internal PCB revision matters more than the sticker. If that fails, try the DSTT Clone YSMenu files.
Introduction: What is the R4 SDHC 2015 Dual Core? The R4 SDHC 2015 Dual Core is a popular Nintendo DS (NDS) and DSi flashcart, designed to allow users to run homebrew applications, emulators, and backup game ROMs from a microSD card. As the name suggests, the "Dual Core" model advertises improved compatibility and speed over older single-core cards, particularly for games that originally required higher processing power. r4 sdhc 2015 dual core firmware
A: In YSMenu, press the Y button on a game. Select "Cheats." Ensure your usrcheat.dat file is in the TTMenu folder. Download the latest cheat database from DeadSkullzJr on GBAtemp. A: Use YSMenu for R4i-SDHC V1