Screen vertical lines at the bottom

[tannoy]

Hello.

I wonder why the lines appear suddenly with varying colors as 

below photos.

My XP is just over one month of use now, and there's no dropping or 

water submerge issue.

Can I fix this on my own or have to send it to the service center?

I've already made it a factory reset, but it remains the same.

Your comment would be appereciated, thanks.

[Qatrium]

@tannoy

Things to try:

- Go to Settings -> About phone -> Diagnostics -> Test -> Touchscreen.

- Reboot into safe mode and check if it happens there.

- Perform a software repair using Xperia Companion.

If those don't help, then unfortunately it would be a hardware issue and you'll need to contact your Local support to get it inspected.

[tannoy]

Thanks for your prompt reply.

Trying to perform a software repair using Xperia Companion,

there's a stop during the session even after second attempt.

Well, I'll give another try with my home pc.

Have a nice day!