this post was submitted on 27 Oct 2023
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Privacy

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So I got Fairphone 4, with /e/ os, a couple of days ago. When I connected it to my NextDNS I saw that it was trying to connect to some weird addresses, like every 5-10 minutes. I searched Internet a bit and found out that it was something with snapdragon cpu and location services. I travel a lot and use Organic Maps for navigation, so location was enabled almost all day on the phone. I turned off location services and connections stopped, and everything was fine for a couple of days.

Today I came home, checked logs in NextDNS and saw that phone started doing the same connections almost constantly even with location turned off.

Can I do something about this, other than allowing these connections? These connections are probably so numerous because they are getting blocked. If I allowed them, phone would maybe call home once in a couple of hours. I would rather not allow them, but I don't want 20% of battery to be eaten by this.

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[–] MigratingtoLemmy@lemmy.world 115 points 10 months ago* (last edited 10 months ago) (2 children)

I found a few links summarising this:

On 4th and 5th generation Pixels (which use a Qualcomm baseband providing cellular, Wi-Fi, Bluetooth and GNSS in separate sandboxes), almanacs are downloaded from https://qualcomm.psds.grapheneos.org/xtra3Mgrbeji.bin which is a cache of Qualcomm's data. Alternatively, the standard servers can be enabled in the Settings app which will use https://path1.xtracloud.net/xtra3Mgrbeji.bin, https://path2.xtracloud.net/xtra3Mgrbeji.bin and https://path3.xtracloud.net/xtra3Mgrbeji.bin. GrapheneOS improves the privacy of Qualcomm PSDS (XTRA) by removing the User-Agent header normally containing an SoC serial number (unique hardware identifier), random ID and information on the phone including manufacturer, brand and model. We also always fetch the most complete XTRA database variant (xtra3Mgrbeji.bin) instead of model/carrier/region dependent variants to avoid leaking a small amount of information based on the database variant.

Note sure if e/OS/ has taken as much care as Graphene has to make the requests more private. Then again, they don't claim to be the most private OS, just De-Googled.


Edit: this is also a good read for further attempts to make your device more private: https://grapheneos.org/faq#other-connections

[–] Cossty@lemmy.world 9 points 10 months ago (3 children)

Android is so troublesome, I am tempted to just install Ubuntu Touch and be done with this.

[–] Deckweiss@lemmy.world 44 points 10 months ago (1 children)

I have a linux phone on the shelf, because in real life I need apps that are only available on android ...

[–] MigratingtoLemmy@lemmy.world 15 points 10 months ago (2 children)

Ah, it's just a quirk of e/OS/. Nothing much - and you can run a DNS filter on your mobile to get rid of this problem (Bonus: won't take too much of battery since it'll not be operating a VPN since you're root)!

I haven't heard much about Ubuntu Touch - does it work well?

[–] 0x2d@lemmy.ml 1 points 10 months ago

i tried it on my pixel 3a, its neat, and i can run android apps in waydroid, but I don't like the navigation

[–] Cossty@lemmy.world 1 points 10 months ago (1 children)

I am kind of new to all these privacy things. So what do you exactly mean by getting rid of this problem? I have DNS which blocks these connections but phone is still making them. How can I make the phone stop doing that?

Ubuntu Touch is just a linux distro for your phone. I actually haven't used it yet, but according to their website, the Fairphone 4 has really good support. So I might try it.

[–] codenul@lemmy.ml 1 points 10 months ago

Just a heads up - Been following UT for some time and the major for me is that there is currently no VolTe support. Major bummer for US folks. There's workarounds, at least for pixel3a but its not 100% reliable.

Also SMS / MMS can be troublesome as well. Can't download images while on WiFi??? Group MMS doesn't work.

Great system, works well but I can't make it my daily driver

[–] Pantherina@feddit.de -1 points 10 months ago

GrapheneOS really is the only Android that should be used. I hope e/OS and others just fork it, add a nicer UI and all.