Nintendo has just blocked flasharts on the 3DS yet again with the release of firmware update 3.0.0-5. However, it does not seem like all flashcards have been affected. The following flashcarts with the latest driver installed from the respective manufacturers have been confirmed to be compatible with the firmware 3.0.0-5:

1.    SuperCard DSTWO

Please download and install the latest driver “DSTWO_v1.11_1108”.

The driver and the complete setup guide are available from the Supercard TWO Driver Setup Guide:

2.    R4i Gold 3DS (r4ids.cn)

Please download and install the latest driver “Wood_R4iGold_V1.41”.

The driver and the complete setup guide are available from the  R4i Gold 3DS Driver Setup Guide:

Meanwhile, the following cards are expected to be compatible with 3DS 3.0.0-5 once the manufacturers have released the firmware fix in the very near future:
1.    R4i SDHC 3DS
2.    Acekard 2i
3.    Supercard DSONEi Mini

4.   M3i Zero
5.    EZ Flash Vi

Please stay tuned for further updates. We will be sending out newsletters once there are further updates.

Besides, if you are not sure about the firmware version of your 3DS,here’s the simple guide for your reference:  

1. Touch the following icon on the lower screen.

2. Check the right hand corner of the top screen which says Ver. 1.1.0-0U.

1.1.0-0 is the firmware version number while the letter 'U' stand for the region of your console.
Here are the versions of the 3DS firmware for your reference:

A = Australia
E = Europe
J = Japan
U = United States

Up till now, there are five version for 3DS:1.0.0-0, 1.1.0, 2.0.0-2, 2.1.0-3 and 2.1.0-4