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ASUS is apparently killing the ability to root present and future Zenfone, Updated
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
Do consumer friendly phones exist at this point?
Pixel phones are the few ones that you can unlock the bootloader and lock again.
fairphone is fully repairable and rootable
Sony allows unlocking the bootloader on a lot of their devices. Except two new US-specific models, according to their site.