Have you tried reinstalling your system? That is the only possible solution I could think of, since you have already tried everything.
I bought a new computer in September and it has been flickering since. I have tried many things and also tried seeking help from an agent at Nvidia, ASUS, Microsoft (remote session). None of them were able to solve the issue.
Here is a video of the flickering: https://www.youtube.com/watch?v=ZWnk95jmg_o
These are the specs of my computer:
Windows 10
Processor: Intel(R) Core(TM) i7-6700k CPU @ 4.00GHz
Installed Memory (RAM): 16.0 GB
System Type: 64-bit Operating System, x64-based processor
Graphic Card: Geforce GTX 1070 (ASUS Strix)
Samsung SSD 850 PRO (512GB)
Mother Board: Gigabyte Ultra Durable Z170XP-SLI
Monitor (52"TV): Sharp Aquos LC-D64U (connected via HDMI cable)
Resolution set to: 1080p, 1920 x 1080
Refresh Rate: 60Hz
This is a list of things I have tried so far with no success:
-change the HDMI cable
-change the HDMI port (both ends)
-connect to a different television
-put a different graphics card in my computer
-update windows
-update graphics driver
-update BIOS
-disable every device that could be disabled in the Device Manager (one at a time)
Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic