You don't, there is no way to do it. The new firmwares add new features, improve performance and add anti-piracy protection, so there's no need to want an older version.
You can't do it.
No, Nintendo's updates block Flash carts ther not going to let you use an old firmware.
It was just called Nintendo DS. Then Nintendo DS Lite, Nintendo DSi, Nintendo DSi XL.
Yes. Unlike the old DS.
yes.
older that the ds younger than the dsi
The DSI is for children of all ages. The games that are designed for the Nintendo DSI appeals to everyone, not just teenagers-adults.
Well at GameStop or EBGames they have a discount. You can bring in your DS Lite and an old game, then they give you a discount off the DSi. They do not allow the original DS.
Unfortunately no, Guitar Hero: On Tour and it's sequels cannot be played on the Nintendo DSi, Nintendo DSi XL, Nintendo 3DS or Nintendo 3DS XL. All these systems do not have Slot-2 hardware (Game Boy Advance slot), which is the main requirement for this title.
Yes it has the exact same games as the old one.
No, only the DSi has an SD card slot.
it depends
Nintendo wifi connection treats every DS as a set. If you switch dsi, the points will remain on your old dsi, but the new one will not have any. (This is for security purposes)