. They are physically incapable of reading SDHC cards (4GB or larger), regardless of the firmware version used. Modern Alternatives for Original R4 Cards
The original R4 Revolution is compatible only with the Nintendo DS (NDS) and Nintendo DS Lite (NDSL) . It does not natively support the DSi or 3DS families without specific hardware upgrades or custom bypasses. r4 revolution for ds ndsl nds firmware 118 new
Troubleshooting tips
Do not download firmware from random pop-up sites. Many "v1.18 new" files are fake or contain malware. Use trusted archival communities (like GBAtemp or DS-Scene). r4 revolution for ds ndsl nds firmware 118 new