If your device is not plugged in using the VTech® recommended Power Adapter, then your batteries could need replacement. Check to see if your AA batteries aren't depleted. Try plugging in your device using the Power Adapter. One of these suggestions should help you with this issue. If you plugged in your Power Adapter and you're still not able to turn on your tablet, then you might have an issue with that Power Adapter or with the power connecting port on the device. Consider replacing the power adapter or replacing the power connection port. If you replaced the batteries with working batteries and your device is still not powering up, then you might want to consider replacing the circuit board.
There are two likely problems for this issue. The first is that the device itself is stuck so try doing a hard reset or remove batteries and all power connectors for about 30 seconds. Put the batteries back in and try again. If this did not fix your issue the other likely problem is that the camera has become disconnected so you will have to remove your back cover and re-seat the camera cable. Go to the "Bad Pictures" section in VTech InnoTab 2s