A custom ROM allows you to extend the life of your Android phone, but does it come with risks in 2024 and why isn't it more popular?

I am surprised that Google spends so much time tackling custom ROMs via it’s Play Integrity API. If only they paid that much attention to say, curating the Play Store more, it had be much better for everyone

  • DacoTacoEnglish
    1•21 days ago

    Pre-locked bootloader times ive had multiple android devices be passed to me that were malware infected that changed the rom in a way that even a factory reset would not remove the malware. Locked bootloaders made it so the rom needed to be signed and unaltered on boot, fixing this. Root access also means apps can use and access api’s in android that it normally cant, changing settings and things inside android it shouldnt. What do you think happens when malware comes in? :p

    Imo, i agree what you said. bootloaders should remain locked but you should be able to somehow, in the bootloader, be able to add the os’ signature/keys to the bootloader’s trusted stuff like how secure boot on a pc keeps os signing keys and verification stuff inside the tpm.

    This way you can install lineage os for example, tell bootloader to trust it, and lock bootloader again so nothing can be changed anymore.
    I wouldnt take this from user input, as that is controlable by malware, but rather come from the OS itself. Maybe even during installation, idk

    • Zak
      0•20 days ago

      @DacoTaco @[email protected]
      @kirk781 @android

      Lemmy.world’s cloudflare doesn’t like the content of my reply, so posting from another account.

      No doubt offering the user the opportunity to verify they’re running the OS they think they’re running is a Good Thing. I’m more skeptical of giving that ability to app developers, as Google has done.

      > Root access also means apps can use and access api’s in android that it normally cant

      Yes. That’s what it’s for.

      > changing settings and things inside android it shouldnt.

      Now there I disagree. AdAway *should* write than a bunch of advertising domains map to 127.0.0.1 in /etc/hosts. AccA *should* write settings that limit battery charge and extend battery service life to /sys/devices/platform/soc. Why should they? Because it’s my device and I want them to.

      A more fine-grained mechanism for these system permissions would be very welcome of course. AccA should *not* write to /etc/hosts and does not need permission to do so in order to manage battery charge.

      > bootloaders should remain locked but you should be able to somehow, in the bootloader, be able to add the os’ signature/keys to the bootloader’s trusted stuff like how secure boot on a pc keeps os signing keys and verification stuff inside the tpm.

      This is pretty much how GrapheneOS recommends doing it, but only a few devices (mostly Pixels) allow unlocking, then relocking the bootloader. Keys can only be added while unlocked.