XPS 9380 screen flicker

Hello all

My XPS 9380 has an intermittent screen flicker that I'm trying to resolve. So far I have:

• Disabled Panel Self Refresh (worked for a little while but then flicker returned)
• Updated graphics driver
• Installed lasted LCD firmware (as per this article: https://www.dell.com/support/kbdoc/en-au/000137639/how-to-resolve-flickering-screen-or-display-on-dell-xps-9380)

Any advice/suggestions would be greatly appreciated.

Thank you!