Request for Opinions on "Airplane mode is a Myth"

i remember when they changed airplane mode in like android 11 or maybe even in 10.

At that time i had root permissions via Magisk on my on my device and not much was hidden.

I remember reading about the changes discussed in an RFC document but hell if i could find it again.. Things like that are harder to search about today than Android 10 days..

The devices arent using Data or Internet. They are using P2P, Bluetooth (always on), Samba, SMB, Sharing, Nearby, Beam, sensor data (live data). Possibly wifi direct and a lot more propriatery technology that ISNT open source.

It's definately the opposite of open source which is why you wont find direct reference to whatever yall think is happening..

But i can point interested people( who arent gonna stop looking anyway ) in a slightly better direction than multi "brains" .

in certain south or central american countries, these kinds of networks have become popular for other purposes. Mostly because laws arent enforced in places where politicians lack the ability to enforce trade agreements and other policys (laws, rules, exceptions)..It's happening different everywhere else though

Anyone remember the days of file sharing? torrenting? Music, videos, art, books, programs, ideas in a general sense used to get shared among others who participated in the event. I am referring to the days of Napster, Limewire, Sharebear, Net Sharing which i guess became Web Share or vis versa...

nullable The devices arent using Data or Internet. They are using P2P, Bluetooth (always on), Samba, SMB, Sharing, Nearby, Beam, sensor data (live data).

What are you implying here? Are you trying to say that airplane mode isn't working as it's documented to and that other things are communicating via other channels? I can only assume so considering what's being discussed here and how you're wording your post. Many of the things you listed here would be blocked by airplane mode. How do you some of these things work if not via the network or internet?

Yes, wifi can be enabled when airplane mode is on, but that means that the cellular radio remains off. Many of the things listed above would work over wifi, as anyone would expect.

If I am understanding you correctly, you're also making claims without any evidence whatsoever.

nullable Possibly wifi direct and a lot more propriatery technology that ISNT open source.

I hope you're not implying that this statement applies to GrapheneOS because GrapheneOS is, in fact, open source. If you're referring to other OSes, like the stock OS or even iOS, then you would need to provide evidence when making such claims.

nullable It's definately the opposite of open source which is why you wont find direct reference to whatever yall think is happening..

Please elaborate, and if we are actually wrong about what we think is happening, it's up to you to provide proof for your claims.

Before the topic sinks into oblivion ……

We read that airplane mode “shuts down the radios” but it never says both transmitters and receivers.

Does anyone have a definitive answer to whether the receivers are shut off in airplane mode?

What are the implications if hey remain on ?

Blastoidea Before the topic sinks into oblivion ……

We read that airplane mode “shuts down the radios” but it never says both transmitters and receivers.

Is that what we read? A source was not cited.

What's on the GrapheneOS web site is "Activating airplane mode will fully disable the cellular radio transmit and receive capabilities".

Does anyone have a definitive answer to whether the receivers are shut off in airplane mode?

What are the implications if [they] remain on ?

Most modern radios use a single oscillator for receiving and transmitting (and the receive path and the transmit path may well share other components, such as mixers and filters). Turning that kind of radio off means that both reception and transmission are off.

Here is an arbitrary article about the cellular modem hardware in an arbitrary Pixel: An examination of the 5G radio in Google Pixel 6 Pro, including this block diagram: https://www.techinsights.com/sites/default/files/2021-12/blog-blockdiagram.jpg. It shows a main modem chip and two band-specific radio chips. If the main modem chip is off, then there will be no cellular reception or cellular transmission on either frequency band -- which aligns exactly with the language on the GrapheneOS site.

Blastoidea I hate to sound contrarian, but I think “are the receivers shut off in airplane mode?” is a pretty straightforward question, with a simple “yes” or “no” answer.

The answer on the GrapheneOS web site is "Activating airplane mode will fully disable the cellular radio transmit and receive capabilities, which will prevent your phone from being reached from the cellular network". "Fully disable receive capabilities" means that cellular reception will not happen.

As previously documented in this thread (de0u), in a modern cellular modem there aren't "receivers" as (Edit: discrete, separable) things. So no answer about "the receivers" can be answered in a meaningful way. It is as if the question were "Are the unicorns asleep in airplane mode?". There aren't any unicorns in a modern cellular modem. So I don't think anybody can answer whether the unicorns are asleep or not, not even to provide a "simple yes or no answer".