i have a similar problem
this is the EXACT same problem my friend had.. The answer.. it's just broken.. :( but you can send it in to Nintendo they'll fix it
i would try blowing on and around the broken ds button. if that does not work i would call Nintendo ds customer service and see if they can help fix it.
£35
you can not fix it it is brocken forever so bye a new one
depending what kind of shop it is, then yes you can they can fix it (I'm not sure if they will charge you for them to fix it) and sell it
Blow on it 3 times.if that did not work then try taking the ds card out of your ds and put It under a tap!hope this helps :-)
http://www.instructables.com/id/Replace-the-top-screen-of-a-Nintendo-DS-without-o/
You cannot fix it. It is broken and cannot be changed. You must get a new one or something.
If you call nintendo, and tell them your problem they will send you packing supplies to mail in your DS. After 4 weeks they will send you back a new DS.
well try blowing to the golden thing in the action replay or maybe your action replay is broken
You can't fix with your own tools. You should bring to a local video game to exchange with your warranty. If you don't have a warranty certify DS with Nintendo to get a free 30-day warranty.
Some game stores have a reputation for fixing broken sold hardware, but most of the time only from the seller can you get it fixed or replaced.