LG C9 TV update to WebOS version 05.10.15 fixes Dolby Vision issue on Apple TV 4K, but issue persists for some users

A few days ago, we reported that watching Dolby Vision content on Roku devices causes flickering after the Roku OS 10 update.

Lately, Apple TV 4K owners are also facing the same issue when it comes to Dolby Vision. Users say they are unable to watch Dolby Vision content without the screen flickering every now and then.

The flickering bug was rampant after users updated to the LG C9 5.10.04 firmware.


According to reports from various users, when viewing Dolby Vision content on the Apple TV 4K, it fails to produce a stable image and sync the Dolby Vision signals.

Having said that, the flickering issue is only visible when you connect the player to an AVR. When the player is directly connected to the TV, you can watch Dolby Vision content normally without any issues.


Fortunately, LG was quick to acknowledge the issue and said it was working on an update that will fix the flickering issue.

I have informed LG of the C9 Dolby Vision issue caused by the latest firmware update version 05.10.04. They are aware of the situation and are preparing a firmware fix which will be released soon. (Source)

Fast forward a few days, and LG released the much-awaited 5.10.15 firmware update. The company says the new version eliminates the Dolby Vision bug on the Apple TV 4K.

But not much after, LG C9 owners say that the update did nothing to solve the flickering issue affecting the premium TV lineup.


New update rolling out (official changelog and compatibility):


– Software update contains minor bug fix

Applicable model list













Currently, LG C9 owners are split over the issue. While some say the flickering is no more, others say it is the same as before.

For others, the intensity of the flickering problem has reduced, but the issue is still persistent.

Judging by the number of reports, it looks like the update is only working for some users.

Is the Dolby Vision issue still bothering you after the LG C9 5.10.15 update? Let us know in the comments down below!

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Anurag Chawake

My fascination with technology and computers goes back to the days of Windows XP. Since then, I have been tinkering with OS, mobile phones, and other things. When I am not working on anything, you will find me enjoying video games on some Discord server.