First you go into system settings then go to the very last page and tap on Format System Memory and that re-starts the system.
yes just push the format botton on the dsi settings
Yes, you can do a full reset. The new firmware won't be wiped, it's on a protected part of the DSi's memory that won't be removed if the console is reset.
Yes you can!
A Nintendo DSi can be reset in a few ways. One way it to remove the battery from the back, another way is to go into the 'settings' and restore the factory settings.
go to the wrench then go to format then click yes and thats how to reset your DSi xl
they dont want to reset they can use backups.
1. Click "I forgot"
You can downgrade at this time, you can only upgrade
you cant
hold ab then select and start
Remove the battery for about 10 seconds. Then put it back in, and your DS/DSLite/DSi has been reset.
In order to do a factory reset on a Nintendo DSi, you must "Format System Memory" within the "Settings" menu. Heed the WARNING screens that are displayed before you proceed. What's wrong with your DSi that it requires a reset? All settings should be reversible except the firmware version. I know when I had an M3i Zero I had trouble with the firmware, but it runs custom firmware anyway.