- LG releases update 33.30.92 for LG C5 and G5 OLED TVs
- Brightness changes in several Dolby Vision modes, but no change in Filmmaker mode
- Many people noticed changes in G5, but not as much in 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 pleased with the results so far.
Some owners on Reddit are sharing before and after images, and the difference in brightness is dramatic: the after images are much brighter and vibrant, replacing deeper shadows with a lighter tone.
Before/After Results: LG G5 Dolby Vision Brightness Update (33.30.92) from r/LG_UserHub
A changelog shared by user Stanley083 indicates that the updates are as follows:
Models: LG C5 and G5 OLED (2025 models)
This update is a specific image quality fix addressing user complaints regarding Dolby Vision brightness.
Major changes
Dolby Vision Brightness Fix: The primary goal of this update is to resolve an issue where Dolby Vision content (particularly 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:
- Home Cinema
- Vivid
- Game
- Standard
Cinematographer mode unchanged: LG said Cinematographer mode remains unchanged in order to preserve “the creator’s intent” and the gold standard, meaning it will always appear darker than updated modes.
Context and user results
• The problem: Before this update, many C5/G5 owners reported that the “out-of-the-box” Dolby Vision experience was too dark, especially the “Cinema Home” preset, which is typically intended for a brighter display.
So far, the changes appear to be a great success. “Thank you LG for finally fixing the darkness,” Uluquat posted on the r/LGOLED subreddit.
Thank you LG for finally solving the darkness with firmware update 33.30.95 from r/LGOLED
But there’s one thing to note: all the images and big praise we’ve seen so far are from LG G5 users, and even though the update also affects the C5, there doesn’t seem to be as much discussion about it.
We’re currently taking apart our LG G5 and LG C5 units to test the differences on the two TVs ourselves, and we’ll follow what we find.
Who will benefit from the LG update – and who probably won’t
The people most likely to benefit from this are those of us who watch TV in fairly bright rooms, where your eye can never fully adjust to a very dark image, and where reflections and ambient light tend to crush and further obscure shadows, meaning that nuanced dark areas become one big black mush.
One of the most detailed posts is from Redditor International-Oil377, who states that “Cinema home is the most interesting one that received an update. It’s not as bright as vivid but still a bit brighter than FMM. [Filmmaker Mode]. Highlights appear less than FMM but are still 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 Cinematographer mode – but “Not everyone has a dark cinema in their basement room, so I can see a lot of people enjoying this change.”
So if you’re struggling with your LG OLED 2025’s visibility in Dolby Vision modes, this could be the update you’ve been waiting for – although there’s no word yet on a similar improvement for the LG B5, which would arguably benefit even more, since it’s a darker TV to begin with.
We’re in the process of getting our C5 and G5 TVs out to test the update and see exactly what difference it makes, but going by Reddit, it’s quite a big one and welcomed by many.
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