Help Screen blinking/brightness jumping?

[julia093]

Hello!

One or two months ago I noticed that when I switch between apps,when I scroll ,when I switch folders,etc,the screen brightness changes by a few points so to speak,it blinks.There are times when I do the same activities and the screen doesn't blink from the first try.
I tried some things that I found online(with no result):
-start the phone in safe mode
-factory reset
-turn off auto-brightness
-turn off battery optimization for system UI and launcher
-turn on disable HW overlays
-turn on force GPU rendering
I'm afraid it's a hardware problem...What more can I try?Thank you!

 

[MrJavi]

Welcome to Android Forums @julia093

You might try booting into "Safe Mode" and if you don't notice the same issue, it's most likely do to a third party app. However, If it still occurs after a factory reset and before re-installing previous saved data it could be a hardware issue.

https://www.google.com/amp/s/www.androidauthority.com/how-to-enter-safe-mode-android-801476/amp/

PS: It would help to know what type cellphone you have.

 

[julia093]

Welcome to Android Forums @julia093

You might try booting into "Safe Mode" and if you don't notice the same issue, it's most likely do to a third party app.

https://www.google.com/amp/s/www.androidauthority.com/how-to-enter-safe-mode-android-801476/amp/

PS: It would help to know what type cellphone you have.

I have a Motorola G6. I tried the safe mode, the problem persists

 

[MrJavi]

It could be due yo the latest official update but couldn't be 100% certain. Do you know when you're Moto G6 updated received the last update?

 

[julia093]

It could be due yo the latest official update but couldn't be 100% certain. Do you know when you're Moto G6 updated received the last update?

I was thinking about this. The last software update was many months ago, but the last security update was pretty recent

 

[MrJavi]

I was thinking about this. The last software update was many months ago, but the last security update was pretty recent

I have to ask, any chance the phone was dropped or the internals were exposed to water? You know, to rule that out as a possibility.

 

[julia093]

I have to ask, any chance the phone was dropped or the internals were exposed to water? You know, to rule that out as a possibility.

No

 

[MrJavi]

I would also go back to phone settings "Developer Options" and turn off "HD Overlays" and "GPU Rendering" . In fact, if you have a setting to turn off or toggel off "Developer Options" for the time beeing, I suggest you try that and re-boot. Then check to see if your issues have been resolved.

A few things I might add/change developer options , although not related to the screen flicking, would be to change the animations (window, transmission and duration) to Zero or off.
If you have dark/night mode you can choose that option as well.

Enabling USB is good if you need to transfer data between cellphone and pc but likewise, it's a security risk when left enabled. That choose is entirely up to you.

On my device, being a rooted user I choose to have mine enabled at all times. The fact that I also have the Xposed framwork, installer and module, allows me to secure my device to only one pc. Unfortunately, I don't believe this is an option for non-rooted devices.

The following image is animations set to off.

 

[MrJavi]

My experience is with Samsungs mainly. Another AF member far more experienced with Moto's is @MoodyBlues .

 

[MrJavi]

Not sure if this is any help but

https://forums.lenovo.com/t5/Moto-G...s-changed-since-Pie-update/m-p/4389808?page=1

Method of last resort would be to downgrade to a lower firmware. Sometimes an update prevents downgrading. I couldn't be able to properly advice with downgrading Motorolas devices.