As the title begins to explain, my 2ds xl's NFC reader just stopped working one day, I've used it to make "Amiibos" in the past with Thenaya with no issues, but now I can't even put Amiibos, official or spoofed, in games. . then trying to scan Amiibo. If that doesn’t work, or you’ve never had Wumiibo installed, your nfc reader may be shot .Ensure that wireless communication is enabled on your system. Press the POWER button on the NFC Reader. The power LED will turn on blue. If the battery power is getting low the LED will turn red. Place the Nintendo 3DS NFC Reader/Writer and the handheld system on a flat level .