this post was submitted on 17 Apr 2024

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What about a linux phone that has a full Android OS sleeping in parallel? Like OnePlus Watch 2 that runs 2 OSs at the same time. (discuss.tchncs.de)

submitted 7 months ago by [email protected] to c/[email protected]

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The OnePlus Watch 2 has 2 chips, and basically runs a lightweight OS while keeping the hungry one in very very low power, and only powering it up when necessary.

I was thinking that maybe such idea could be applied on a Linux phone that could run all your banking apps without Waydroid's "you-must-be-a-hacker" issues, literally by having a half-asleep Android running on another chip, which you can wake up whenever to do your "non-hacker" things, while at the same time you can run the rest of your system (calls, messaging, calculator, calendar, browser...) on your lightweight, private and personalized Linux mobile OS.

I think I would pay big bucks for something like this, and it could serve as a transition device for ditching Android in the future when Tux finally governs over the world.

What do you guys think?

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[–] [email protected] 21 points 7 months ago (5 children)

Does waydroid support safetynet? That seems to be what op is talking about

[–] [email protected] 20 points 7 months ago* (last edited 7 months ago)

SafetyNet is deprecated and replaced by "Google Play Certification" checks. This means any custom OS may be blocked. Its pretty horrible.

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago) (1 children)

Safetynet worked at some point, but it's proprietary tech that changes on a whim. Any other emulator or container will probably run into the same problem. Starting an entire new emulator with the purpose of circumventing safetynet or other proprietary attestation is an effort that could've gone into making it work on waydroid instead.

@[email protected]

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[–] [email protected] 8 points 7 months ago* (last edited 7 months ago) (1 children)

That's specifically for Magisk.
This is for Waydroid.

[–] [email protected] -1 points 7 months ago (1 children)

My understanding is the Google Integrity API is not the same as Google Play Protect:

The Play Integrity API helps you check that interactions and server requests are coming from your genuine app binary running on a genuine Android device
[...]
Determine whether Google Play Protect is turned on and whether it has found risky or dangerous apps installed on the device

Google Play Protect seems to function more like an antivirus

Google Play Protect includes on-device capabilities that help keep devices and data safe. These on-device services integrate with cloud-based components that allow Google to push updates that constantly improve their functionality.

Because Play Protect works doesn't mean Integrity API will.

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[–] [email protected] 5 points 7 months ago* (last edited 7 months ago) (1 children)

You need Google Play Certification to pass Play Integrity checks.
For Waydroid this is the only step you should need, unless you add Magisk.
Magisk breaks other checks.

Play Integrity :

Free of known malware: Determine whether Google Play Protect is turned on and whether it has found risky or dangerous apps installed on the device.

[–] [email protected] 0 points 7 months ago (1 children)

Where did you get that second screenshot from? It's not available on my Waydroid instance.

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[–] [email protected] 3 points 7 months ago (1 children)

[–] [email protected] 0 points 7 months ago

Oh, it does work 😮 That should solve OP's problem then 🤔

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[–] [email protected] 1 points 7 months ago

I doubt it does, google would never approve that. Maybe if it would pretend to be an other, genuine device, but I'm not sure the devs want to deal with that

[–] [email protected] 1 points 7 months ago (1 children)

AFAIK waydroid doesn't pass the AVB (Android Verified Boot) check

[–] [email protected] 2 points 7 months ago (1 children)

It passes the basic one?

[–] [email protected] 5 points 7 months ago (1 children)

https://docs.waydro.id/faq/google-play-certification

[–] [email protected] 3 points 7 months ago

Damn, interesting. Only works with Google Tracking at root level, but at least it works... for now.