Here’s the crux of the article in video form:

New updates are being added at the bottom of this story…….

Original story (published on April 5, 2023) follows:

LG Electronics recently rolled out a firmware update for its C2 and G2 OLED TVs. But some users have reported issues with the update, particularly with the loss of brightness and black levels.

However, a new version of the firmware, v03.30.67, has been released in Korea, which reportedly addresses the issue.

LG C2 & G2 OLED TV brightness issue

The update to v03.30.66 for LG C2 and G2 OLED TVs was released a week or so ago. But soon after, users started reporting (1,2) issues with the update, particularly concerning the loss of brightness and black levels.


My LG C2 after update 03.30.66 Dolby vision for movie so dark, no bright before update firmware. HDR Gaming with HGIG very dark after update software. anyone had this issue?

Several users posted before and after images of their TVs, showing a noticeable loss in brightness and black levels after the update.

While some users have reported that the update has been pulled by LG, it is still available to download from the official LG website.

LG C2 & G2 OLED TV Software

In fact, a newer version of the firmware, v03.30.67, has been released for both LG C2 and G2 TVs and apparently, it reportedly fixes the issue with loss in brightness and black levels.

The new firmware has just been made available in some markets, with more expected to get it in the coming days. Alternatively, if you can’t wait for the OTA, you can download it manually here.

Once downloaded, the firmware can be installed through a USB drive. Simply insert the drive with the downloaded firmware and follow the on-screen prompts to install it. This should fix the brightness issue.

hai bro, thanks for link, i decide update via usb and its work and fix my problem.

It is important to note that firmware updates can be risky, and there is a chance that they can cause issues with the TV.

That said, those unaffected by brightness issues on their LG C2 and G2 OLED TV units after installing v03.30.66 firmware may want to wait until the new v03.30.67 update is officially released.

Update 1 (April 07, 2023)

01:20 pm (IST): A user who tested the v03.30.67 update is concerned about some new issues with the Dynamic Tone Mapping. According to them, the colors now appear washed out and the blacks just look grayish.

After update 03.30.66 and 03.30.67, I feel something change dynamic Tone mapping somehow. Now Dynamic Tone Mapping sometime Wash out, Dark room no look pure black its like gray.

Update 2 (April 10, 2023)

06:11 pm (IST): According to reports, users (1,2) have started receiving 03.30.67 updates all across the world.

Update 3 (April 11, 2023)

05:36 pm (IST): After installing the most recent update, users claim that the brightness issue has improved. However, for others, the upgrade has caused Wi-Fi connectivity issues (1,2).

Update 4 (May 3, 2023)

05:38 pm (IST): Some LG OLED TV users got new update with version 03.30.68. However, users feel that brightness is still a problem.

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