How can i make my ds lite work after a spilled water on it

SOURCE: R4DS works in other ds lite but not my own, why?

this is a know issue with R4 clone cards, most R4 cards sold today are not real R4NDS cards because they have been discontinued
Most R4 clones have some trouble with firm version on DS make version and date.

SOURCE: r4 stopped working on my ds lite but works on friends one

Email or Call Nintendo or send them your Ds, and they will give you a new one.

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: ds lite no game inserted

Look down in the cartrage area and see if one of the pins has become broken or bent. This is the most common problem for this symptom. If this is the case, then you will probably have to take it to your local game store for repair.

SOURCE: Nintendo DS lite "L" "R" button dont work

OK the buttons are probably dirty. I had this same problem with my DS. Pry open the outside edges of the buttons until there is a gap. Blow into the gap while making sure you dont spit in the console. This should clear out the dirt and make your buttons work.