Hi, for your colorimeter, see the recommended meter settings here:

https://www.avsforum.com/threads/colourspace-zro-low-cost-manual-calibration-software-thread.3175441/post-60895715

For the HDR calibration, use a different color temp in SM and the regular menu.

The target colorspace is ST.2084 REC.2020 for HDR10.

For LG manual calibration see here:

https://www.avsforum.com/threads/colourspace-zro-low-cost-manual-calibration-software-thread.3175441/page-18#post-60904235

Thank you for the assistance. Currently I am using Cool for SDR and Warm for HDR. I was able to pre-calibrate the SDR without issues.

But I am a little confused on the HDR WB calibration in the Service Menu. When performing the pre-calibration for the warm preset for HDR what would be the correct settings in ZRO? Would I be setting the color space to ST2084 Rec 2020 and Patch Scale to 8-bit Legal? Would I also be turning on the HDMI override to engage HDR10 as well at this point?

raidflex

Using 2-Point RGB Balance controls (general rule) you can fix RGB balance, not Y (luminance) / or gamma errors.

For the HDR RGB balance you will use the ST.2084 REC.2020 as the target colorspace, the RGB balance is slightly different compared to REC.709.

Select the same color temp in both WB SM and regular UI menus. (for example, warm 2 to your UI before starting HDR calibration)

For HDR, set patchscale LEGAL and 8-bit if you have Pi3, or 10-bit if you have Pi4 with Ted's PGenenerator ISO 1.3:

https://www.avsforum.com/threads/dedicated-raspberry-pi-pgenerator-thread-set-up-configuration-updates-special-features-general-usage-tips.3167475/post-61452981

https://www.avsforum.com/threads/dedicated-raspberry-pi-pgenerator-thread-set-up-configuration-updates-special-features-general-usage-tips.3167475/post-61485021

https://www.avsforum.com/threads/dedicated-raspberry-pi-pgenerator-thread-set-up-configuration-updates-special-features-general-usage-tips.3167475/post-61449897

Amazing information, thank you Ted for investing your time in this guide, I shall try on my C7.

I love the idea of using two profiles for the two presets (SDR and HDR) so that both are as perfect as possible!

One question though: You recommend using 100% patch for HDR and 109% for SDR when adjusting the "gain".

What about "cut"? Do you have a recommended patch for those?
Thanks!

LG 2017 OLEDs can add internal LUT with Technicolor FW. (17-Point Cube)

Please send me an email to inform you.

https://displaycalibrations.com/contact_us.html

https://www.avsforum.com/threads/colourspace-cms-next-generation-calibration-thread.3049142/post-60763062

For SDR, use only RGB Gain with 109% since the LUT will fix the remaining issues.

For HDR, use both RGB controls.

LG with Contrast @ 100 (HDR/DV) is clipping WTW, so it will become 0-100%.

Take measurements of your whole grayscale and see which adjustments will give you a better performance to the entire RGB balance.