Pixel 3 screen flashing like a strobe / green color after April update

Question

I can confirm that the April patch does not address the screen flashing and green distortion problem.

PROBLEM:
Thus far, all four Pixel 3 devices have consistently flickered like a strobe light and/or the screen would turn green green like an old TV trying to get a signal.

WHEN DOES IT OCCUR (consistent in all devices so far):
---This occurs in an environment that is usually in a low light setting. 
---The phone brightness is set between 10 to 80 percent. 
---It does in both night light and non night light setting.
---The flashing/green can start at the login screen (but not all the time).
---The flashing/green can start after you've logged in and are using the device.
---This also occurs in safe mode.
---Manufacture reset does not fix the problem. 
WHEN SCREEN FLASHING DOES NOT OCCUR (THOUGH NOT SOLUTIONS):
---Generally putting the phones in gray scale and setting brightness to 100 percent has reduced the frequency but is not a solution. 
---In bright daylight the flashing rarely happens.
I attached two pictures that show the screen flashing/green after the April update. And another screenshot of the OS.

Brian Fitzpatrick · Accepted Answer

Just a reminder, if you are experiencing this issue with your device it is almost certainly a hardware failure and you should contact Pixel Support regarding your warranty options while your device is still under warranty.

Brian Fitzpatrick · Accepted Answer

It's still a hardware failure that's just being avoided by turning off the always on display. You should not have to turn off features to use the phone properly and there's no guarantee that the screen won't get worse or fail completely over time.
I highly suggest your contact Pixel Support regarding your options if your device is still under warranty.

Penelope R. · Accepted Answer

Hi User 105xxxx and Marc-Andre.  This appears to be a hardware problem as none of the software troubleshooting procedures offered in this thread have solved the problem.
 
This being the case you will need to contact Google Support via THIS link.  Although phone support is not available owing to the Covid-19 disruption, you should be able to request either live chat or email support.
 
It is likely you will be asked to factory reset your phone* so you might prefer to do this, if possible, prior to making contact with Google Support.
 
I'm sorry we volunteers cannot help more but our remit is to offer software troubleshooting and we have no input into Google's warranty/repair/replacement service.
 
Regards, Penny
 
* Please Note: Prior to factory resetting, you must know the exact credentials (password & email address) that were used when last setting up the device. Without entering this information you will be unable to regain access (Factory Reset Protection). If you change your password within a 24 hour period of a reset, another full 24 hours will need to pass before attempting to log in.
 
When factory resetting to correct a problem, it is preferable to do so without restoring from a backup or reinstalling your third-party apps. If the problem has been caused by either a faulty backup or rogue app(s), reinstallation will also reintroduce the fault.
 
Using the volume buttons to navigate and the power button to select, 
	
Power off then hold Power + Volume DOWN simultaneously until the bootloader screen appears;
	
Hold Power while using the volume down button to navigate to Recovery Mode and use Power to select;
	
You should then see an Android lying down with chest opened; press Power + tap volume UP just once and immediately release both;
	
Use the volume DOWN button to navigate to Wipe Data/Factory Reset;
	
Press Power to select;
	
Press volume DOWN and use Power to select 'Yes;'
	
Wait for the process to complete and then reboot the 'phone.

Penelope R. · Accepted Answer

Hi A P 4979 & Mark. Please contact Google Support for assistance with this problem as software troubleshooting has proved ineffective.
 
Thank you.
 
Penny

Penelope R. · Accepted Answer

Hi User1234xxxx If the flickering is now so bad that it's affecting the use of your 'phone as you describe, please contact Google Support for further assistance and to discuss your options.
Regards, Penny