I found a few old phones from my family. II cleaned them, installed LineageOS and rooted most of them. On one I installed postmarketOS, one is still stock Android and one is lets say bricked (after installing lineagesos it stay on boot logo for ever, before that I installed lineageos and nethunter on it). One one disk encryption doesnt work for some reason.
Phones (all samsung galaxy):
- S4
- A5
- A5 (bricked)
- A5 (postmarketOS)
- J3
- J4+ (no encryption)
- A31 (stock)
What can I do with them? Something like Monero node or Tor relay, but I’m already running that on old pc. For something that needs speed I have rpis (like a website). Camera security system? Tracking device?
Is it possible to run (and autorun) cli apps and/or services that can access interent, bluetooth, gps, sensors, camera, files, etc. just like on linux? I’m a programmer and I don’t like making normal android apps for a simple project.
The cameras are usually nice enough for using as a dash cam if you drive. I use one of mine for a media device around the house, kitchen aid etc. I also use an old one for keeping my current one free of boatware, extra apps, and ensuring privacy on my carry phone (by not having anything google or tacking/data harvesting if I can help it).
Outside of that you could look into using them as potential network devices, DNS ad blockers, etc. I haven’t looked recently but using one as a casting device receiver for TV would be awesome over a Chromecast or the like. But not sure how those projects are going