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Tuning a washed out display

Using temperature profiles to improve color and shadows.

Ryan Kulp avatar
Written by Ryan Kulp
Updated this week

The no flicker + grayscale feature release exposed underlying issues with some customer displays.

This was resolved by our factory for upcoming components, but previously affected customers may experience occasional washed out images:

This guide provides a quick method to adjust your display's tuning and resolve the washed out effect without new hardware. An alternative to this guide is enabling Maximize Compatibility.

Step 1 - Disable OTA Updates

Visit your device settings and disable OTA Updates. Make sure to click Save.

Step 2 - Flash the Beta Release

Visit usetrmnl.com/flash and select your device, then "FW1.6.8-temp-profile-beta," following instructions to add this build to your device.

Note: the "temp profile" feature is currently available for TRMNL OG and the Seeed DIY Kit devices.

Step 3 - Send us a live chat

Either in our developer-only Discord server or the bottom-right live chat widget on our website, let us know you'd like to opt into the Temperature Profiles beta.

We'll enable the feature on your account, and you may then visit your Device settings and toggle between multiple profiles.

Step 4 - Test each profile

After our team has enabled this feature on your account, we suggest first trying Profile A, then B, and so on. You may want to take a photo of each result.

To test a profile:

  1. Select and save the profile from your Device settings

  2. Drag and drop a washed out item in your Playlist to be the "next" item. Do this by ordering it after the row with a green "Displayed now" badge (example below)

  3. Click the button on the back of your device to force-skip to the next screen

  4. Observe results

Drag a washed out image/item to "Row 13" below for quick testing

Repeat Steps 1-4 for each profile until you find one that looks best on your device. Send us a live chat to share before/after photos, which we'll use to generate additional profiles.

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