My Nintendo DS Lite is unable to read the ds game that is inserted i have tried to clean it and nothing is wrong with it that i can see but it still wont play i am able to play game boy advance games in it but not the ds games. how do i fix it when my warranty is expired and i don't want to pay a lot of money?

SOURCE: delete files on Nintendo DS Lite

You can simply remove the Li-ion battery for a short while - it doesn't retain info when batteries removed.

SOURCE: nintendo ds lite

open it up and clean out the ds

SOURCE: deleting a user on nintendo ds lite

It is simple. Your DS/DS Lite needs to have 1 user. You can change the user but you cannot delete the user.

SOURCE: my nintendo ds lite has water damage

OK FIRST OPEN IT UP AND IF ITS STILL WET PUT IN A BOWL OF DRY RICE FOR 24 HOURS. THE NEXT IT WIL B COMPLETLY DRY. PUT IT TOGETHER AND TRY IT IF IT DNT WORK CHECK THE FUSES. HERE IS A LINK

http://www.m3wiki.com/index.php?title=Nintendo_DS_Lite_:_Repair_a_broken_console_(blown_fuse)

IF UR DS SCREEN ARE MESSED UP GO HERE AND BUY REPACEMENTS FOR IT

http://www.dealextreme.com/products.dx/category.604~r.44989246

SOURCE: nintendo ds lite comes on but doesn't read inserted game

If your in the UK or Europe get it done at www.dsdoctor.co.uk