How do I remove the word demo that is in red on my screen?

[AC Question]

demo in red on screen cant seem to be able remove even in factory reset

hi i have a andriod 4.2.2 dual core-a23 model Q8H, I HAVE DEMO IN RED STUCK ON SCREEN HAVE TRIED FACTORY RESET, NO JOY IN REMOVING IT CAN ANY ONE HELP ME TO GET THIS BACK TO USER CAPABILITY, as i canot seem to find the problem thankyou

 

[Rukbat]

Re: demo in red on screen cant seem to be able remove even in factory reset

If it's still under warranty, ask to have it exchanged for one that works. If not, contact the manufacturer and ask what's happening. There's no "demo" mode in stock Android.