> This is false. Android has had full system backup capabilities through `adb backup` for years. Apparently this is false, because apps can "opt out" of ADB ba

> This is false. Android has had full system backup capabilities through `adb backup` for years. Apparently this is false, because apps can "opt out" of ADB backup and many do (see other comments), furthermore it doesn't backup the entire phone, but only the system image (partly). Does it backup the root state of the phone? Nope. Does it backup the restore partition of the phone? Nope. Making it a "maybe full system backup but not full system image backup that is kind of buggy". In other words, like I wrote earlier: not a -full- system backup at all. I was specifically talking about effortlessly backing up and restoring a full system image. Blackberry OS10 style: plug in phone, press "backup system image" and get a carbon copy of EVERYTHING that runs on the phone that can be restored to a new or existing phone with 1 click. Your post confirms that this is not possible in Android: using ADB is not "effortlessly" and it's not a full system image backup. Even if I would backup and restore from and to the exact same rooted phone (that's all I'm asking), the restored backup would not be the same as whatever was on the phone when the ADB backup was pulled. Nandroid can do this, in theory, with a lot of hassle (but not on my phone, because TWRP for my phone doesn't support decryption of the system partition).