Phone will not shutdown!!?

[Leo Anderson]

Just got my Lumia 920 in last night and decided to give it a full charge before using. Holding down the power button, I get the "Slide Down" to power off. It says Goodbye but a few seconds later, I get the brief vibrate and it turns back on.

If the phone is not connected, it will stay off. Is this normal?

 

[Tyresian]

While the phone is plugged in it will stay on. That was true for Windows Phone 7 and seems true for 8 as well.

 

[Munkeyphyst]

It is normal, expected, and intentional

 

[Reflexx]

The OS makes sure you don't overcharge your battery, increasing the life of your battery. But it has to be on in order to measure the charge.