If you signed your passport incorrectly or there is a mistake in your signature, you may leave it if it is not too bad. If you think you need to change it, simply strike a single line through the mistake and sign the correct signature. If this is not good enough, you may need to apply for a replacement passport.
Only works on rooted devices (or devices with Recovery Mode) Disable ADB on screen off and enable ADB *after* screenlock is unlocked. Source code (+artwork) freely ($0) available on demand by email. Adb-Lock helps protecting Android (prior to 4.4.3) against the adbd authorisation bypass attack by (found by Henry Hoggard, MWR Labs).
Changing your PIN or Password to Lock the Screen. Touch the . Touch Change screen lock (under the Screen unlock section). Enter your current lock sequence, then touch Continue. Touch PIN to change your number lock sequence, touch Password to change your alphanumeric lock sequence, or touch Slide up to disable the lock sequence. Youâre prompted to enter and reenter your new lock sequence. From then on, you will need to enter the sequence and touch OK to unlock the screen.