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Bypass Lock Screen Pattern On Sony Xperia S Lt26i Guide

On early Android versions, the lock screen had a built-in fail-safe.

Why this fails: You never added a Google account, you changed the password recently, or the device is in airplane mode.

If your Xperia S is running Ice Cream Sandwich (4.0) or Jelly Bean (4.1), Google implemented a safety net for exactly this scenario. Bypass Lock Screen Pattern on SONY Xperia S LT26i

Steps:

Why this fails now: Google introduced stricter security (2FA) and deprecated less secure apps. If your phone cannot connect to Google’s legacy servers, this method will return an "Invalid username or password" error even if your credentials are correct. On early Android versions, the lock screen had

  • Enter the following command to delete the gesture key file: 
    adb shell
su
rm /data/system/gesture.key
    If su fails (no root), try: 
    adb shell rm /data/system/gesture.key
  • Reboot the phone: adb reboot
  • Once rebooted, swipe the lock screen. Any pattern will unlock the device.
  • Immediately go to Settings > Security > Screen lock and set a new pattern or disable it.

    • Warning: This requires root OR shell access. On stock Xperia S unrooted, adb shell might lack permissions. If you get "Permission denied," you must proceed to the factory reset methods.

    Before "Find My Device" became the standard, Google used Android Device Manager. For the Xperia S, you can try using a PC to force a lock reset. Why this fails: You never added a Google

    Requirements:

    Steps:

    Note: If the phone shows "Offline," this method will not work.

    On older Android operating systems (like the Jelly Bean 4.1 running on the LT26i), Google built in a safety net that is almost non-existent on modern phones for security reasons.