The Supercard DSONEi / Mini have received an update to their firmware/bootloader, making them compatible with the 3DS (in DS mode). A plus about this update is that it is in the .NDS form, meaning it's a program you can run on the flash cart itself (no need for the firmware writer device).
||3DS XL(LL)/DSi XL(LL), DSi, DS Lite, DS
||3DS XL(LL) 4.4.0-10X & DSi XL(LL) 1.4.5X
||1G, 2G, 4G, 8G, 32G
DSONEi / Mini Firmware upgrade to support for 3DS.
1. Unzip the grade file to the TF card.
2. Find a DS console which support DSONEi/mini to run the upgrade file from EOS menu. (find the file, press A)
3. Follow the instruction, press B, DSONEi / Mini is upgrading.
4. When “Please, Power off” displayed. Upgrade finished.
5. Don’t forget delete the upgrade file.
How to upgrade DSONEi mini firmware ?
Step 1: Download the firmware. (English)download: dsoneimini_update_eng_3ds_44010.zip
Step 2: Unzip and copy the upgrade file such as "dsonei_update_eng.nds" to MicroSD.
Step 3: Make sure you have EOS system in your MicroSD, if you don't have, please download from here.
Step 4: Find a DS console (NDSDSDSLiteDSi3DS) which can run this EOS system, if you have the latest version console can not run EOS system, sorry, you have to find one.
Step 5: Turn on the power, and run the upgrade file like a normal ROM, you can upgrade this card already inserted or swap a new card to upgrade (swap card only works on DS/DSLite), and then press B and wait. When see turn off power, then upgrade progess finished. Now, the DSONEi mini support the latest version console. Off cause, if this firmware declared support the latest version console.
DSONE/i EOS Download
Important: DO NOT TURN OFF POWER when upgrading, otherwise DSONEi/mini will PERMANENT BROKEN.
• Works on LATEST DSi Firmware Update 1.4.5/3DS fireware 4.4.0-10
• This is the SAME Reliable Supercard DSONEi just without a firmware writer or microsd card reader!
• Same awesome functions but at a great price!
• This NDSi Flash card can be updated using a DS Lite console!
• Also can be used on the 3DS XL & 3DS LL, DS Lite, DSi XL & DSi LL
• 100% game compatibility, supports clean Rom's and works on any OS
• Uses MicroSD card, both FAT16 and FAT32 supported
• Supports SDHC TF memory allowing for high capacity memory cards
• Compatible with ALL speed flash memory cards
• Hardware save, multi-save support
• Save directly to MicroSD rather than onboard flash
• Supports RESET, RealTime Cheat Code and Real-Time Game Save!
• Upgradable Operation System with powerful function and friendly GUI
• Supports MP3, Movie, TXT and view Pics directly!
• Supports Moonshell