New inspiron 15 5577 screen blinking /flickering

Yes sure, It blinks in every 30 seconds(around).

flickering in sense can you be more specific?

Im also facing the same problem.

Or....

reinstalled Video driver from your Dell Product Support page. Please enter service tag number onto link below;

Drivers & Downloads

Note: Please create a restore point before attempting to uninstalled / reinstalled Video driver:

Create a system restore point

merrille wrote: " I have tried everything that I have come across and changed hdmi cable, all drivers are completely uptodate, it flickers/blinks in task manager "

:emotion-2:

The flickers appears to be cause by a corrupt Video (display) driver, therefore I'd suggest uninstalling and reinstalling the driver in Safe mode With Networking.

Start your PC in safe mode in Windows 10 - Windows Help

Please expand Update Your Display Driver and follow steps in link below.

Troubleshoot screen flickering in Windows 10 

I have already tried that and it didn't help I also installed the latest intel update last night that was only released yesterday and that didn't help either.

30 days to return a lemon to get a full refund.

After that you are stuck.

I suggest you think about that very carefully.

I'm assuming you updated the System Setup(BIOS).....

How to Update BIOS (Official Dell Tech Support) - YouTube

I'm assuming you installed Chipset and Video drivers in correct order.

How to reinstall drivers in the correct order | Dell US

Further, you verify drivers were corrected installed in device manager.....

Device manager >> expand Display Adapters, right click driver, select Properties, Driver, and then version. Do the same for Chipset driver.

I'm also assuming the system has the latest (Microsoft) windows updates.....

Windows 10 Fall Creators Update & Latest Features | See ...

Run Dell Online Diagnostic to check hardware on the system....

Dell Diagnostic Tests (Official Dell Tech Support) - YouTube

Lastly,

As ieee488 suggested,

You should consider returning computer to dell( or the retail store from which it been purchased) and get a refund.

U.S. Return Policy | Dell

Keep in mind, you do have 30 days (Invoice date) of software support, therefore I suggest contacting Dell Tech support in the link below.

Contact Information | Dell US  

Thank you for your message. We sincerely apologize for the inconvenience caused.

Please click on my Dell username & send a private message with the service tag, registered name & email address.