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
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