Because most (maybe all?) other smartphones do.Why should it stay off?
I've got a L920 and it does the same thing -- I would say this is normal.
Because most (maybe all?) other smartphones do.
OP- that is normal, and one of the only things I dislike about the Windows Phone OS. They all do it (in my experience).
Every Nokia before windows used to be able to charge while switched off. The thing I miss is that the alarm would still come on when the phone was switched off - charging or not! Still...not the end of world...little bit of a step back however!!!
Read the manual? That's crazy talk.
but I wonder, is there some technical reason that the phone must stay on? I'M just curious.
AFAIK there's no technical reason that the phone needs to be on, other than the fact that some 'smarts' in the phone need to supervise the battery charging process. So to some extent all phones are 'on' during charging, just with Android (not sure about iOS) the OS doesn't boot up, just the charging system. I'm guess MS just decided it was easier to have the phone boot normally to enable the charging process, rather than build a separate boot program to just supervise charging.
Because I put my phone on to charge when I am asleep and don't want to be woken up by text, emails or calls till the morning.
Because I put my phone on to charge when I am asleep and don't want to be woken up by text, emails or calls till the morning.
Or 3G+Wifi off if you want to receive phone callsTurn on airplane mode.
