This cam is around 8 months old, and has randomly started restarting itself with the sd card in. It will play the shutdown noise and then restart without the "hello ddpai" thing. After a few more seconds, it will shutdown again and it continues to repeat the process over and over. When I take the sd card out, the cam stays on and no longer restarts itself. I only have 1 sd card, so I'm not sure if that's the issue. Also, I reformatted the SD card on my laptop to no avail. Does anyone know what might be causing this? I've looked at a couple of Amazon reviews and have seen others mention this issue, but no one has any sort of explanation on why it's happening. Thanks for your help!