Down button doesn't work on nintendo ds

it might be because you have a DSi, and your sister has a DS or DS lite

if so you cannot play some games because DSi are region locked, basically an US DSi can only play US games, a japanese DSi can only play japanese games etc etc,

DS and DS lite are not region locked and can play any game

Go thru these steps to see if its a configuration issue with the DS:

Restart your Nintendo DS. Sometimes a quick restart will fix your microphone problem. Do this on both systems. All the steps that I mention, do them on both systems.

Check whether your microphone volume is up. Access this feature through the DS menu. If the microphone’s volume is down, it will not receive any sound.

Make sure the volume on your Nintendo DS is up. If your speakers are off, you won't hear whether your microphone works.

If these steps do not correct the problem, then systems will need to be serviced cause the main board would be bad at that point.

my sister might solve that but she Aint Got No FixYa Account

that means theres probley a glitch in the game id suggest getting a new one or try holding down all the buttons down at one on the ds holding them all down restarts the game thats all i can say that mite help you hope this helped:)

dust

try to reset it.

1. With your console powered off insert the Action Replay DS
2. Hold down buttons A+B
3. Turn your console on
4. With A+B still held down, as soon as you see the Action Replay DS license screen press and hold down buttons START+SELECT so that you now have 4 buttons held down
5. Hold all 4 buttons down for around 10 seconds until the Action Replay DS loads to it`s home screen
6. If Action Replay DS doesn’t hold on the license screen for around 10 seconds when you do this, you may need to turn off and try again

it probly has a loose wire you can either open the ds and fix it or take it to a repair shop. also charge it

which one

The system probably broke when your sister dropped it.If I were you, I would buy a new one.

My DS touch screen is very light. If you turn look at a particular angle you can still see what is shown on the screen, but other than that, the screen looks white. I have already changed the touch pad and that was not the problem. Any assistance would be appreciated.
Thanks