Post by danny burstein Post by nospam Post by danny burstein
And you really, really are ready to believe that, for example,
a country like China wouldn't mandate this capability in
all phones sold in that country?
they aren't forcing it on iphones and i am not aware of android phones
being forced to have a remote enable capability.
And you're sure that Apple, Google, and China in general would
be telling you the truth about all this?
apple releases one firmware version per model of the iphone regardless
of country, so either every single iphone can do it or none of them
can. that doesn't sound very likely at all.
given the level of hacking that the iphone dev team does to find
exploits to jailbreak, i'm *very* sure that they would have noticed
that capability. they have completely dissected the entire boot process
and how to get past the codesigning and other checks.
there's actually an hour long video somewhere on the 'net of the iphone
dev team discussing the gory details of what goes on. i don't have the
bookmark handy and this isn't an iphone group anyway.
with android, each manufacturer can alter the base code, so there's a
possibility for chinese devices to have something in it, but it's
almost certain to not be in mainstream android, such as samsung, nexus,
htc, motorola, etc. phone. you'd think *someone* would have noticed it.
Post by danny burstein
I _can_ tell you, based on personal testing, that standard
cell phones off the shelf in the US (at least the one I
tested) do maintain some "live" circuitry in background
even when turned off [a]. In retrospect I should probably
have also tried the same test removing the battery...
all it does is look for a button press to turn it on or charger attach
to monitor battery recharging so the battery doesn't explode due to
Post by danny burstein
[a] I visited Carlsbad Caverns, a series of deep
underground caves. I turned my Nokia basic phone
(camera but otherwise "dumb") off upstairs.
When I was in the cave I turned it on. It reported
no signal... but did have the correct time.
- so if there's enough electricity still floating
around to keep the clock going, how hard it would
it be to keep a low current "wake up if you hear
a turn-on signal" going, especially if it only
"listens" every ten seconds for a quarter second?
the hard part is doing it without the user noticing anything.
turning on the radio would drain the battery. users notice that.
turning on the radio to send information back to wherever really drains
the battery. users would definitely notice that.
this is also something that is easily tested. either look for the
radios to be powered on or for rf transmissions.