Just as the title says, today the mt card official site has updated the mt card hardware firmware from V1.3 to V1.4
download: mt card V1.4 hardware
This update improves Eshop ROM compatibility and supports .3dz ROM .
It is an hardware update, just directly update your MT card（any version） to V1.4. While updating, don’t disconnect the USB cable. This update works with V.12 launcher.dat.
For" * .3ds "game, save file is" *.sav"
For " *.3dz" game, save file is“ *.zav”
For NAND backup games（card2）, the backup data directly stored in the ROM, don’t rename the file extension. If you once rename the file extension, when you enter the game, the backup data will be deleted.
1.Hardware update(VIA USB)
1.1 Enhance Eshop ROM compatibility.
1.2 Support .3dz ROM.(support online play)
Do yourself a favor, don't buy crappy flashcarts.