If I press and hold my volume up and down for a power reset on my Z30, the notification light flashes red, blue and green. Then a box comes up asking me my BlackBerry email. Does this mean this phone is from a BlackBerry employee? I bought it used.
And my notification light flashes red, blue and green really fast for a few minutes. The window in the pick will stay there until I close it. In my Z10, holding the up and down volume keys did a power reset.
Just a guess but probably means the phone is set to require a specific password before a reboot. You can probably shut it off in settings. Now the question is whether or not Blackberry email is referring to BBID email you use or an actual BlackBerry email account.
I tried my BlackBerry email, and it didn't work. You can't see it in the pic, but after you submit your email, I can see writing about log reports and questions in the back ground asking things like UI lag, frequency, what didn't work, steps to reproduce,...... As for turning off, I just press and hold the top button and do it that way.