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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.mobile.android
Subject: Re: is my phone ON or is it OFF?
Date: Thu, 25 Apr 2024 15:13:40 +0200
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On 2024-04-25 11:29, Nick Cine wrote:
> On Thu, 25 Apr 2024 09:47:17 +0100, Jeff Layman wrote:
> 
>>> [*] or any other action such as lifting it up, or touching the screen,
>>> or poking the fingerprint reader.
>>
>> The lifting it up thing is interesting. I wonder if that's done with an
>> accelerometer? If so, it would be checking that too.
> 
> A few more comments, but I don't know much about this topic.
> 
> 1. Even if a phone is "off", when you plug in a charger, "something
>     happens", so is it really off? I don't know, but how does it charge?

But the operating system is not running, radios are off. This can be 
known because when you press the power button it takes some time before 
the phone responds. It is booting.

What exact circuitry is on when the charger is connected is up to 
speculation.


> 2. The government has, in the past, secretly modified gangster's phones
>     such that they looked to be off, but were secretly still transmitting.

Hum. Dubitable.

For one thing, the battery is spent soon if it is transmitting. A 
question of hours.


> 
> 3. The iPhone, I believe, is never off, which, I'm told, is how the FindMy
>     sensing works for stolen phones.
> 
> How does any of that work? I don't know.

-- 
Cheers, Carlos.