Chosen Solution
My ds is fairly old and it hasn’t been charged in years. I tried charging it again but the orange light won’t even show. My charger is new but nothing happens.
This could either be a Battery issue; replace the batteryCharge port issue; replace the motherboard (the charge port is soldered to the mobo and unless you have good microsoldering skills I don’t advise replacing just the port)Faulty EM10 power supply filter; repair or replace the motherboard, this requires soldering skills if you wish to repair your mobo. Replacing the mobo is by far easier and less time consuming.
I had a similar issue with my old DS Lite, I noticed while looking into the charging port that it was pretty bent back, I got a flat head screwdriver and pushed it back into place. Although I wouldn’t recommenced using a Flathead screwdriver, I would recommend using a spudger if that’s the issue. It could be the battery, but if there’s no light at all then I don’t think so, as a DS Lite even without a battery would still make a light when charged. Good Luck with repairing your DS Lite!