The lock screen of the Sony Ericsson Xperia Arc prevent use by unauthorized persons. Also, you avoid accidentally triggering a call or other function of the smartphone.
To active the screen lock of the Sony Ericsson Xperia Arc:

1st Take the Sony Ericsson Xperia Arc operating as usual.
2nd Tap under the Start Page screen, click the application icon screen.
3rd Now select “Settings”> “Setup screen lock” “Security & Location”>.
4th Select the desired option: password, PIN or pattern. The subsequently determined “unlocking measure” You absolutely have to memorize.
You can use the Sony Ericsson Xperia Arc in standby mode to unlock:
- Press the start or the ON / OFF button on the smartphone. Then the screen is activated.
- Tighten the lock icon with your finger tip to right across the screen.
- Now enter the previously set password or PIN. You should have set a gesture, draw it with your fingertip on the screen.





I was looking to lock the arc like the iPhone/blackberry where u can lock it , for example u set a time like a minute or whatever and it locks down the entire phone and have to put your access code in, not just slide your finger across screen and it’s unlocked.