- LG releases update 33.30.92 for LG C5 and G5 OLED TVs
- Brightness changes in several Dolby Vision modes, but no changes in Filmmaker mode
- Many people notice changes in the G5, but not as many noticed in the C5
LG has released an update intended to make Dolby Vision HDR much brighter in several modes on the LG C5 and LG G5 OLED TVs – and it seems many owners are happy with the results so far.
Some owners on Reddit are sharing before and after photos, and the difference in brightness is dramatic – the after photos are much brighter and more vibrant, replacing deeper shadows with a brighter tone.
Before vs After Results: LG G5 Dolby Vision Brightness Update (33.30.92) from r/LG_UserHub
A changelog shared by user Stanley083 says the updates are as follows:
Models: LG C5 and G5 OLED (2025 models)
This update is a specific picture quality fix that addresses user complaints regarding Dolby Vision brightness.
Major changes
Dolby Vision Brightness Fix: The primary purpose of this update is to address an issue where Dolby Vision content (specifically in “Cinema Home” mode) appeared noticeably darker than standard HDR10 content.
Targeted modes: The brightness boost has been applied to the following Dolby Vision picture modes:
- Cinema Home
- Live
- Game
- Standard
Filmmaker mode unchanged: LG has stated that Filmmaker mode will remain untouched to preserve the “creator’s intent” and the reference standard, meaning it will still look darker than the updated modes.
Context and user experience
• The Problem: Prior to this update, many C5/G5 owners reported that the “out-of-box” Dolby Vision experience was too weak, especially the “Cinema Home” preset, which is usually intended for brighter viewing.
So far, the changes seem to be a big hit. “Thanks LG for finally fixing the darkness,” Uluquat wrote on the r/LGOLED subreddit.
Thanks LG for finally fixing the darkness with the 33.30.95 firmware update from r/LGOLED
But there’s one thing to note: all the pictures and high praise we’re seeing so far have come from LG G5 users, and even though the update is also for the C5, there doesn’t seem to be much discussion about it.
We’re breaking out our LG G5 and LG C5 units right now to test the differences between both TVs for ourselves, and we’ll follow up with what we find.
Who will benefit from the LG update – and who probably won’t
The people most likely to benefit from it are those of us who watch TV in fairly bright rooms, where your eye can never quite adjust to a super-dark picture, and where reflections and ambient light tend to crush and obscure shadows more, meaning nuanced dark areas turn into one big black mush.
One of the most detailed posts is by Redditor International-Oil377, who says that “Cinema home is the most interesting thing to receive an update. It’s not as bright as vivid, but still quite a bit brighter than FMM [Filmmaker Mode]. The highlights come less than FMM, but still remain impactful in many cases.”
However, their post suggests that the update won’t be of much interest to serious home theater owners as it doesn’t change Filmmaker Mode – but “Not everyone has a dark room in their basement, so I can see a lot of people appreciating this change.”
So if you’ve been struggling with the visibility of your 2025 LG OLED in Dolby Vision modes, this could be the update you’ve been waiting for – although there’s not yet a similar boost for the LG B5, which would no doubt benefit even more as it’s a weak TV to begin with.
We’re in the process of breaking out our C5 and G5 TVs to test the update and see exactly how much of a difference it makes, but according to Reddit, it’s pretty significant and welcomed by many.
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