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 '17 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 '17 at 15:44
  • None I know of - wait for others to answer.
    – Andy Yan
    Jan 17 '17 at 23:53

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

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.