It's important that you have Night Shift, True Tone (iOS-specific) and all other modes that may affect the screen brightness and/or colours are turned off during your measurements in the OKKO Health app, to ensure accurate results. Ways in which to turn off these settings depends on the device you have. Below is examples on how to do this on Android, and on iOS.
Android - Samsung Example
Samsung has got two Screen Mode settings available: Natural and Vivid.
- Vivid: This optimizes the color range, saturation, and sharpness of your display. You can also adjust the display color balance by color value.
- Natural: This adjusts the screen to a natural tone. This is the setting you should have activated whilst engaging with the OKKO Health app.
Here is how to select Natural Screen mode:
- Open the Settings app on your device, then tap Display.
- Tap Screen mode.
- Select the Natural Screen mode.
Image taken from Samsungs website.
Please note: Other Android devices may use other names for these Screen Modes. If you want the specific instructions for your device, then type in "Changing Screen Mode on *Your device*" in your browser search tool.
Apple
Turn Dark Mode off
First, you have to open the Control Center on your Apple Device:
- On an iPhone/iPad with Face ID: Swipe down from the top-right corned of the screen.
- On an iPhone/iPad with a Home button: Swipe up from the bottom edge of the screen.
Next, touch and hold the icon that looks like this 
Then, tap the symbol that looks like this 
to turn Dark Mode off (or on).
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You can also follow these instructions to turn off Dark Mode:
- Go to Settings on your device:
- Tap Display & Brightness
- Select Light to turn off Dark Mode
Turn Night Shift off
First, you have to open the Control Center on your Apple Device:
- On an iPhone/iPad with Face ID: Swipe down from the top-right corned of the screen.
- On an iPhone/iPad with a Home button: Swipe up from the bottom edge of the screen.
Next, touch and hold the icon that looks like this
Then, tap the symbol that looks like 
to turn Night Shift off (or on).
Turn True Tone off
First, you have to open the Control Center on your Apple Device:
- On an iPhone/iPad with Face ID: Swipe down from the top-right corned of the screen.
- On an iPhone/iPad with a Home button: Swipe up from the bottom edge of the screen.
Next, touch and hold the icon that looks like this
Then, tap the symbol that looks like 
to turn True Tone off (or on).
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You can also follow these instructions to turn off True Tone:
- Go to Settings on your device:
- Tap Display & Brightness
- Then make sure that the toggle next to 'True Tone' is off (to the left and greyed out)
If you have any questions or need help, contact support@okkohealth.com and we will make sure to help.
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