Strange behaviour screen col

[dRyW]

Look at this

An approximately 1 cm col went mental, it lost its normal responsiveness.
I'm having this problem a few months now. I didn't want to admit its particularly annoyance when you happen to use the keyboard and unsolvelessness.

Hope there's going to be a solution.
Any idea?

Thanks

 

[Sepero]

The solution is to check your warranty. You have a defective device. Sorry I can't give you better news.

 

[dRyW]

It's a chinese phone, the warranty hasn't expired yet but it's going to be too expensive sending it back. Too bad, I paid it 1/3 of the average price. This's what I got.. :dong: