I was given an old Samsung S4 for use at work recently, for scanning QR codes with primarily.

I’m an iPhone guy, so am lost with Android, but the version it was locked to was ancient and massively out of date. I did a bit of research, and after a few hours of trial and error I’ve got it running on Lineage 14.1, with a few useful apps downloaded from F-Droid. It’s gone from an old hunk of trash to a perfectly usable device that won’t win any awards for its benchmarks, but is spot on for what i need it to do.

I wouldn’t dream to use any stock android at this point. Been on LOS forever and each new phone I buy either check if Los is available or, in one case (my current phone) I ported Los for it myself.