Has you DSi or DSi XL console stopped reading or recognising the game card inserted the your slot 1 game socket may need replacing.

Phillips cross head screwdriver required to fit the very small screws in the PSP, PS3 BRDrom drives and Nintendo consoles (phillips 00# size)

Professional Quality BOL Triwing Screwdriver - 2.0 x 25mm

Has you DSi or DSi XL console stopped charging or is the charging socket broken? Then it will need replacing.