3DS:Troubleshooting/Fix NVRAM

If you have not already ran ctrcheck prior to finding this page, do so now, and make sure the results do not include Critical: NVRAM is inaccessible. If ctrcheck does say that, then this page will not help, as that means the NVRAM on the Wi-Fi daughterboard is either disconnected or physically damaged.

Required Reading

This page will assist with uncorrupting your console's NVRAM, which is one of multiple known causes for broken DS mode. The reason this can occur without hardware damage is largely unknown, but the current best guess is the WiFi daughterboard having a glitch or temporarily disconnecting.

Instructions

1. Power off your console and insert your SD card into your computer
2. Download both NVRAMtool.3dsx (direct download) and nvram.bin (direct download)
3. Place both of these files in sd:/3ds
4. Reinsert the SD card into your console
5. Power on your console
6. Open the Homebrew Launcher, then open 3DS_NRAMtool
7. Once the app loads, press B, wait one second, and then press X
8. Press START, then exit out of the Homebrew Launcher
9. Reboot your console and then attempt to open the Nintendo DS Profile again