Help HTC EVO turning on by itself?

[JennsEvo]

I have tried to find a thread that would apply to my phone, but to no avail.
My HTC EVO version 2.3.5 seems to be turning itself on.
My phone was low on battery so I plugged it in to charge and turned it off. A minute later I heard the phone turning itself on!
I left it alone and it did it again. This time I didn't turn it off!
Not sure if it was automatically updating something, but I think that the phone tells you there is a new version update available and asks if I want to update it. I know it turns itself after updating and then turns itself back on.
The second time was even weirder.

 

[rs98]

Are you on Sprint? If you have 2.3.5, you must have the Evo 4G, which I believe has a category in the forums. Our phone is the Virgin Mobile one. Though I can't help you, I'm sure some others can!

Edit: Try turning off 3G, 4G, and wifi and see if it still turns on. If it does, then it's probably not an update.