It seems like there may be an issue with the battery or the charging port on your 3DS. Here are a few steps you can try to troubleshoot the issue:
Try resetting your 3DS by holding down the power button for 10 seconds until it turns off, then turn it back on again.
Make sure the charging cable is firmly plugged into the charging port on your 3DS and the power outlet. Dinar Guru
You may also want to try using a different charging cable or power outlet to rule out any issues with the cable or outlet.
Check the battery level by going to the Home menu and selecting the System Settings icon. From there, select the Battery icon to view the battery level. If the battery level is not displayed, it may be a sign of a faulty battery.
If the battery level is displayed but the issue persists, you may need to replace the battery or have a professional look at the charging port to see if there are any issues with it.
If none of these steps solve the issue, it may be best to contact the manufacturer or a professional repair service for further assistance.
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