What is the difference between nintendo ds and a n.ds lite?can i play brain training on a normal ds

It might be a game problem! Be sure to check with Nintendo to be sure it's not a pirated or fake game.

You click on daily training click on the person you want to delete then click other options,then click on settings then their will be a thing that says erase data click on that then click yes :D hope this helped!

some games are like that there is no way to change it

log on to google and type in more brain training manual for ds and you should find it there also check the game makers web site normally you can access them from there

try to play with the poweradapter connected. If the problem still there you will need probably a new mainboard for your nintendo. If the problem disappears probably a bad battery is the problem. If you can exchange your battery with another NDS lite you can check if it is the battery or mainboard.

Hello psychofluffy,

I'm assuming you are referring to Brain Age: Train Your Brain in Minutes a Day.

In order to "unlock" the other parts of the game you must continue on with the Training portion of the game. As you progress, more games will become available. For a detailed guide, check out this http://www.gamefaqs.com/portable/ds/file/931667/44142

Your name and such are in the console. Remove the battery and this info is gone.

Your saved games, high scores and such are in the game catridge, and just about every game has the option of removing this data from the menu... somewhere... (they are all different).

send me an email of your problem and i will c what i can do
[email protected]

Try and buy the Nintendo DS Headset. I had the same thing, but I did that and it worked.

You're going to have to send it in for repair. It sounds like it's out of warranty, which is unfortunate.