Extract Wi-Fi passwords from a non-rooted (really) Android phone
Stuck trying to get your Wi-Fi passwords off your old Android phone?
Normally these aren't accessible from non-rooted Android phones. Unlocking the bootloader to try to root your phone wipes your phone, so seems like a Catch-22, however it is still possible to extract the passwords out using adb. This script automates the process.
January 2019 note: This script worked for my Nexus 5, but doesn't seem to work on my OnePlus 3T, so maybe Google has since closed the loophole exploited by this script.
February 2023 note: Looks like loophole still exists, but needs
to be exploited differently in later versions of Android or adb.
Try get-android-wifi-passwords-2 for newer phones (e.g., Android 10 & later.)