Here is a screenshot of the text right under the date and time.
▌│█║▌║▌║ ⓐⓜⓘⓣ ⓗⓞⓦⓐⓡⓓ ║▌║▌║█│▌
Technique is pretty simple and there are probably other workarounds for it. Read below to see how I did it.
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Since I have an Xperia Pro mk16, the screenshots may or may not differ on your phone.
What you need before starting is a free app called Airdroid from Google Play.
Download it from here - https://play.google.com/store/apps/details?id=com.sand.airdroid&hl=en
Once you have it all set up, you will need a text decorator. There are plenty of websites out there but here is one for now - http://www.webestools.com/stylish-text-generator-nickname-message-msn-facebook-windows-live-messenger-text-accents-effect-ascii-text.html
On the text decorator you will find three options:
1. Text (enter your text there)
2. Text effect (choose how you would like your alphabets to look like)
3. Text Decorations (however you wanna decorate your text. Like I choose the barcode on mine).
Copy the text that was generated and open Airdroid on your browser and phone. Here is a quick video tutorial on how to setup your Airdroid http://www.youtube.com/watch?v=WfNnQxpw7Uw
On the browser where you have Airdroid running, paste the generated text on the clipboard and click SAVE. This will send the clipboard text on you device.
Then go on to your device settings
CLICK ON SECURITY
CLICK ON OWNER INFO
CHECK 'Show owner info on lock screen' and PASTE THE TEXT IN THE TEXT BOX.
HIT BACK AND EXIT TO HOME SCREEN. LOCK THE PHONE AND CHECK THE LOCK SCREEN.
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