My new3dsxl screen has the same problem and its only 2yrs old. I've had this issue since hatena was still around so I'm used to it but I hate drawing on one side of the screen
You'll need to replace the touchscreen. https://www.ifixit.com/Guide/Nintendo+DSi+Touchscreen+Replacement/3751
Cherryby quickdudes
Americano MVby Epic
My new3dsxl screen has the same problem and its only 2yrs old. I've had this issue since hatena was still around so I'm used to it but I hate drawing on one side of the screen
You'll need to replace the touchscreen. https://www.ifixit.com/Guide/Nintendo+DSi+Touchscreen+Replacement/3751