Current Bootchart / breaking SD boot
thomas at gstaedtner.net
Thu Jul 10 00:35:47 CEST 2008
> On Wed, Jul 9, 2008 at 2:47 PM, Mike (mwester) <mwester at dls.net> wrote:
>> And pulling the battery out too (no current user-space images of which
>> I am aware actually power down the GSM, so if you aren't pulling out
>> the battery, you're not in "airplane mode"!!)
> Most consumer electronics in this category don't really power down,
> even if you press the physical "power off" button. A tiny bit of the
> system is still running to do miscellaneous stuff. ARM9 processors
> like the one in the OpenMoko have a sleep mode that freezes the system
> state, but it's otherwise "on".
> I have always wondered about the real reason behind asking people to
> turn off phones during take off and landing. Recently I heard that
> it's actually only one of the cases that matters, I think it was
> landing. Once I forgot that I had dropped my phone in my backpack even
> before leaving out for the airport and I realised this only when I
> arrived at my final destination. I wondered how often that kind of
> thing happens to people all over the world.
The first airlines already published studies, that they see no problems
I don't think there will be any case where a cellphone could in any way
disturb plane electronics.
Only a matter of time till they are allowed on every plane (even it's
pretty useless without in-plane coverage).
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