How Do You Fix Nintendo DS Lite Hinges?
Here is a great video that take you thru a step by step approach for fixing the DS Lite Hinges.
http://www.youtube.com/watch?v=jQuV6mkwYZY
Hope you find it useful for fixing your problem
Srini
The Nintendo DS Lite has an LCD screen inside of the top cover, the weight of which can cause wear and tear on the plastic hinges to which it attaches. If the hinges break, using the game console becomes difficult and could cause more damage. Fixing the hinge requires replacing the top casing that contains the LCD screen. Making this repair involves a lot of time, so it should only be done if saving money is an important consideration. Step 1 Put the soft washcloth down on a table. Put the DS Lite face down on the washcloth. Open the battery compartment and pull out the battery. Put both aside. Step 2 Remove the screws from the back and side of the hinge using the NDS screwdriver. Turn the DS Lite over and remove the screws from the bottom casing and top casing with the NDS screwdriver. Step 3 Carefully remove the bottom casing. Release the white wire attached to the motherboard by squeezing the sides till it comes loose. Pull the white wire off of the motherboard and through the hinge