Any one experience flickering screen ?

[Kaczqa]

After last update I notice that screen is flickering (changing tone of colours) , specially on gray and black colours, it is really annoying.

[CameronT]

Hi @Kaczqa, I am sorry to hear about this issue.

Try these methods one after the other. Verify whether the problem was solved after each method, before trying the next one.

• Restart your Xperia device in safe mode and make sure that Developer options is not enabled. If Developer options is not available, continue with the next method.
• In Safe mode, your device only starts with software and applications that were already installed when you purchased your device. If the device’s performance improves in Safe mode, it’s likely that one or more of your post-purchase downloaded applications are affecting the device negatively. Proceed by uninstalling any interfering app.
• Update your Xperia device to a new software version using Xperia Companion. 
• Perform a factory data reset or perform software repair using Xperia Companion.Note! Always back up all personal data before performing a software repair. All data in the internal memory is overwritten during a software repair. Content on an external SD card is kept.
• Contact your retailer or Local support team. Note! Before handing the phone over for service, back up all your data to avoid possible data loss. Data on the device may get deleted when examined. Don't forget to bring proper documentation, for example, proof of purchase and warranty card. The documentation required may vary depending on market, country or region. If possible, deactivate the Protection by my Xperia and remove the Google accounts on your device before sending it in for service or repair to prevent Protection by my Xperia or Google Device Protection from locking your device.

To disable Developer options

1. From your Home screen, tap the Application screen icon.
2. Find and tap Settings > Developer options.
3. Drag the slider beside On to the left.

[Kaczqa]

Sorry for such a long delay, I will try it right now. Nothing was happening from me last post till yesterday. Phone start to lagging again, screen is flickering only when brightness is set to any thing lower then 100%, colours on black and gray keyboard are washed, same in any other screen that use those colors.

Any way I will try your solution .