If you see the "Menu?" error, it is almost always a firmware issue.
The R4 Revolution for DS/NDS/NDSL/NDSi is a testament to the ingenuity and creativity of the homebrew community. Despite the challenges posed by firmware 1.18, the device remains a powerful tool for loading homebrew games, running emulators, and customizing the NDS experience. As the homebrew community continues to develop new firmware, hacks, and exploits, the R4 Revolution is likely to remain a popular choice among NDS enthusiasts. r4 revolution for ds ndsl nds firmware 118 new
Full menu control via the DS stylus or D-pad. Understanding the Importance of Firmware v1.18 If you see the "Menu