How to update the M3 firmware?
First, you should get the latest firmware and game manager M3_full_install_en, from www.m3adapter.com (in the downloads section). http://www.m3adapter.com/Download.htm Put the update firmware E16 or … on your CF/SD card, and start your M3. You may update M3 firmware in NDS mode or GBA mode . In NDS mode (with passme inserted, if your DS is not flashed) It should ask if you want to update, press start and wait. It actually takes around 40 seconds to update firmware on the M3. Please notice that “DO NOT UPDATE M3 SD with M3 CF firmware!!” or ” Do Not update M3 CF with M3 SD firmware !!