I am in need of a separate degoogled phone for some things that require high level of privacy (nothing illegal).

I have 2 phones that I can use. One of them is my business phone (it has my business number, apps, data and that sort of stuff) which is now running an OS with all the Google spyware because it’s necessary for the apps to work. I can reinstall everything on the second phone and use the first one as the secure device since it supports everything I need. The problem is that it has some issues on vanilla ROMs that I don’t really want to deal with and the reinstalling will take a lot of time.

The issue with the second phone is that it is rocking an old MTK chip and rooting instructions are let’s say a bit beyond my ability to understand. I still want to use it without Google if possible though. So can I degoogle its stock ROM with ADB or something? And is it worth trying or there will still be some vulnerabilities?

EDIT: to clear some possible misunderstandings, the reason of why I need a separate secure phone is that I am forced to use a very invasive proprietary app that I’d prefer just keeping on a separate device instead of trying to limit its spyware abilities with firewalls and that kind of stuff. I don’t trust the last solution much. Also I can’t use it in a VM because I need it to always be accessible wherever I am and yk carrying a PC is not an option

    • GolfNovemberUniform@lemmy.mlOP
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      6 months ago

      I don’t really trust such stuff. Once I tried disabling system apps via ADB (not deleting). They appeared as disabled but still could run in the background…

      • MentalEdge@sopuli.xyz
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        6 months ago

        The point isn’t to stop them from running. It’s to stop them from talking to the internet, which is a lot simpler to achieve.

        • GolfNovemberUniform@lemmy.mlOP
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          6 months ago

          What I meant is that if we can’t disable them without root we probably can’t disable the network access either. I don’t have the knowledge and time to test outgoing packets and stuff like that

          • MentalEdge@sopuli.xyz
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            6 months ago

            Android has built in support for VPNs. If there was a way for the OS to leak traffic, that would be a massive security vulnerability that would have corporations dumping all android company phones within a week.

            Non root ad blockers work by creating a vpn within the phone that all network activity goes through, which then doesn’t allowed ad traffic.

          • Anamana@feddit.de
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            6 months ago

            It’s fairly secure that it works, because it’s basically setting up a VPN connection that effectively blocks every network traffic outside of the tunnel.

            But if you wanna be 100% sure you need to invest either the time or root your phone.

          • Empricorn@feddit.nl
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            6 months ago

            It’s okay to admit you don’t understand stuff, you don’t need to push conspiracy theories. None of us is omniscient…

              • Empricorn@feddit.nl
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                6 months ago

                if we can’t disable them without root we probably can’t disable the network access either.

                Complete bullshit and utter speculation.

      • MinekPo1@lemmy.ml
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        6 months ago

        to my knowledge disabled apps do not run so you must have misunderstood something

  • impure9435@kbin.run
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    6 months ago

    You can try uninstalling as much Google crap as possible using the Universal Android Debloater

    Then perhaps use a firewall like NetGuard in whitelist mode, to only allow selected apps to access the internet

    As an additional layer of security, you can use NextDNS with the No Google blocklist, and block all connections to Google servers in DNS. If you need to access specific things like YouTube, you can whitelist them.

  • alb_004@mstdn.party
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    6 months ago

    @GolfNovemberUniform In redmi turn off miui optimization then you can use the app called disable manager from f-droid to disable most of the apps. After disabling turn on the miui optimization.

              • InputZero@lemmy.ml
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                6 months ago

                So I’ve read a lot of this thread and I felt I needed to say one thing to you. I don’t know why you need such extensive data security but that’s none of my business.

                What I wanted to say is that if you need this much protection for a business, ie you’re protecting many other people’s sensitive data, hire a professional to do it right the first time. Doing a half assed job then paying someone else to fix it is twice as expensive.

                If you’re doing this to protect your own personal data then the best way to do it right eventually is through trying and learning from your mistakes. Obviously try to avoid them but it’s impossible to not make any.