ocnbrze said:

here try this:

How To Use Any Android Tablet As An Android Auto Car Head Unit - SlashGear

Android Auto is a popular feature found in many modern cars. If your vehicle lacks support for it, there is a way to add it using an Android tablet.

www.slashgear.com

and do not use crack.....just say no to drugs

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timbr said:

Hi all,

kind of a weird question due to some special circumstances:

I have an older (ca. 2019) Amazon 10" Fire tablet running something like FireOS 7.xx which AFAIK was still based on Android 5.x. I also have a Galaxy J-something smartphone (running Android 7.x IIRC) somewhere which I can't find atm, unfortunately (I've been using non-Android phones for years). So this is about said Amazon tablet primarily.

I have the Google Play store installed on the tablet (as per several instructions on the net), and it generally works fine. Since I installed the Google Play app, I only ever got apps from there.

Now I'd like to buy the Caustic 3 synthesizer Android app, which is still widely regarded as the best app of this kind for Android. It may (or may not) be abandoned, but you seemingly can still buy it at Google Play. Last version was (and probably will alway be) 3.2 from 2013.

This app comes as a freely downloadable base app and a separate for-purchase "Unlock Key" (no IAP). If I look it up in the Play Store from my desktop PC, it looks like both are still in the store and most importantly, you can still purchase the unlock key.

However, if I try to find it in the Play Store bolted-on to the Amazon tablet, both are nowhere to be found. That's a bit weird since the app should run fine on Anroid 5.x. Amazon's own (kinda joke of an) app store has the (v3.1!) program itself, but not the unlock key.

There have been some reports of people running the Amazon-downloaded app with a Google Play-acquired unlock key, but I can't see how that could work.
In my case, this would require me to purchase the unlock key in some way off the tablet (maybe inside the desktop browser?), and then to somehow get it onto the tablet and hopefully, the unlock magic would still work then.

I never read anything about downloading the APK files of your own purchases directly from Google Play to anything other than the final target device and, even if such an APK download was feasable, I have no idea whether or not the licensing-DRM-whatever magic can be made to work after an APK transfer.

Please note that I'm only ever talking here about making a legitmately purchased app work and not about 'hacks' or such of any kind.

Could someone tell me if and how this could work?

I apologize in case this has been discussed before in another thread but my search turned up nothing that hit the spot (downloading your "own" APKs and "messing with it").

TIA

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nickdalzell said:

You're dealing with the first-time setup of a device. It won't let you pass without all that jazz.

Welcome to the modern era. Now you know why I try to steer clear of it and relive the past. Think it's scary now, just wait till Neuralink becomes a thing.

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Hadron said:

What magic signal do you think they are adding that allows the human ear to hear the voices normally but stymies mechanical recording? If they were outputting any additional sound within the audible range you would hear the distortion yourself. A signal at a different frequency would be ineffective (because it would not affect the frequencies of interest). For sure you could add noise that would make life difficult for a mic, relying on the human brain's pattern recognition abilities to let you understand what is being said, but if you did that the voice would definitely not be normal or clear to you.

If you have 2 speakers you can use interference (in the specific sense of interference of waves, not just the generic term "interference") to cancel out a sound in a particular location. But that only works if you have 2 speakers and some electronics which knows where they both are and where you want the sound to be cancelled, so that one can output an inverse waveform with the correct amplitude and phase offset to achieve the cancellation where you want it. If you try to put a destructive interference out through the single speaker you get no sound out at all (the 2 electrical signals sent to the speaker would cancel each other out and the speaker would not receive any signal at all, and hence output no sound whatsoever). There is no way that a single phone can do this.

If you were using a radio mic then you could imagine outputting a radio signal to jam its communications with the computer, but that would not affect just one side of the conversation. And I believe that's a USB mic, so we can dismiss that theory. Plus you need to be careful about using jammers in public places: even if you restrict them to the unlicensed radio bands (so that they are not illegal to operate), which you might guess is what a radio mic would use, they could easily affect other devices that use those bands (because you'd have to jam the entire band, not just a narrow channel, since you don't know which channel the radio mic is set to use). It would be a commercially risky move for Google to put something like that into a phone, as the potential downsides would way exceed any benefit.

Plus, on that last point, what would the commercial benefit of Google doing anything like this be? Google only gain from it if it increases sales, but it can't do that if it's an unadvertised, hidden feature.

My friend William of Occam suggests you look for a simpler explanation.

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Hadron said:

I don't know from your description whether this is the default system notification tone: on my s21 that's 5 notes rather than 4

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ocnbrze said:

your link does not work. a factory reset will do nothing for your facebook account. and just an fyi to get messages from facebook, you need facebook messenger app. it is not done via facebook itself.

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PitCarver said:

My take on this is that if the government puts something on your vehicle to control it's operation it can simply turn it off at will.
I don't trust the government enough to believe that the technology wouldn't be abused.

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dorolisamelrose said:

This is intended for ease of reading and listening to e-books. 🤔

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