Wow, the M3 Team is looking to capitalize on the 4.5.0-10 money. Their M3i Zero GMP-Z003 flash card now runs on 4.5.0-10 firmware. Grab the 2 files you need to upgrade from http://www.handheldsources.net/M3DS/Download_M3DSR.html
1) Run the .nds file on a DS/DS Lite/DSi (NOT 3DS!), when it's...