My Problem

A few days ago, I forgot my 3 by 3 pattern password and backup pin for my Samsung Galaxy J3 2016 (using the default home and lock screen). I don’t want to factory reset or flash a custom recovery, because I still have my warranty and I don’t want to risk bricking. One post states that in “Apply Update from ADB”, commands can be executed via a ‘updater-script’ in an update.zip file. Can I use that to mount enough partitions and access enough commands to follow a password reset tutorial? (Like this one?) Is there a zip ready-made for that purpose?

Unavailable Options

  • The phone runs Marshmallow. No Google-Account unlock.
  • Android Device Manager will not replace the current password.
  • I do not have a Samsung Account. No using findmymobile.
  • I have not enabled ADB normally, when the phone is fully booted.
  • ‘ADB devices’ does not show my phone when in recovery unless I use “Apply Update from ADB”.
  • I cannot use ‘fastboot boot’ or any other fastboot command, as Samsung phones only have ODIN Mode.
  • I don’t want to use Odin or Heimdall, as they seem to be unstable and risky.
  • Kies3 can’t unlock my phone, but it will see it when locked and fully booted.
  • You can't expect that - even though ADB sideloading is possible, the zip still has to officially signed, which is of course not the case for anything we create.
    – Andy Yan
    Jan 17, 2017 at 15:20
  • @AndyYan I forgot about that, thanks. I would assume then that only custom recoveries allow me to flash any zip I want? Know any other ways to reset a password without wipe? Jan 17, 2017 at 15:44
  • None I know of - wait for others to answer.
    – Andy Yan
    Jan 17, 2017 at 23:53

1 Answer 1


I ended up just factory resetting it. Thanks for the information, @AndyYan.

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