Why won't my 3DS 2015 power on after reassembly?
I replaced the joystick on my 3DS 2015. After reassembly my device won't power on. What should I do to resolve this problem?
A common mistake when reassembling the 3DS is forgetting to connect the power button ribbon cable when reassembling. Ensure that the ribbon cable, which goes from the power button in the bottom right of the device to a connector in the middle of the logic board, is connected. If this doesn’t solve the problem consult the Nintendo 3DS 2015 Troubleshooting page for more help with the 3DS 2015 not turning on.