Screen vignetting

[neko3004]

I bought an Xperia M2 last year so now it's just about exact a year old now. Few months ago I started to found that there're some vignette in every corner of my screen. At first I thought it was the ui, but after that I realize that it wasn't.

The question is... Is it normal?
Or it is a problem. I don't know maybe it got dirty or kinda burnt (because sometimes it overheat because I'm using it while charging).

[Uliwooly]

@neko3004

The phone can't overheat, you should try to repair the phone with PCC

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Phy]

That might be a hardware issue contact your local Sony Xperia support to get it inspected.
http://support.sonymobile.com/global-en/contactUs/

[Jake-SonyXperia]

Hi neko3004,

Welcome to the community,

I have supplied some instructions on how the software repair can be done.

Here's how to run the repair on PC Companion:
1. Install and open PC Companion then select Support Zone.
2. Phone Software Update.
3. Start.
4. Repair Phone
5. Continue
6. Accept data removal
7. Next
8. Wait for prepare
9. Select Phone
10. Follow the connection steps

And Bridge for Mac:
1. Launch Bridge for MAC without the handset connected.
2. On the Main Window select "Xperia > Repair Xperia Device".
3. Ensure the phone is charged and select "Ok" in the following window.
4. Select Continue on the following page.
5. Wait until the initialising step is finished the continue as below.
6 . Select your model of phone from the list that appears
7. Follow the connection steps that appear, ensuring that you are holding the relevant button down before during and after the connection phase until the update/repair begins.