[GH-ISSUE #277] Red No longer Displayed Correctly - Version 2.5 AP Firmware #3476

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sascha_hemi · 2026-03-20T23:05:57+01:00

sascha_hemi commented

2026-03-20 23:05:57 +01:00

Originally created by @Boh1 on GitHub (Mar 20, 2024).
Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/277

After updating my AP from 2.5-beta 3 to 2.52, my tags no longer render red correctly - it comes out as a light grey.

This is on a M2 2.9" tag with new batteries and firmware 19 0x13. Verified on a second tag.

Reverting the AP back to 2.5-beta3 fixes the issue.

Originally created by @Boh1 on GitHub (Mar 20, 2024). Original GitHub issue: https://github.com/OpenEPaperLink/OpenEPaperLink/issues/277 After updating my AP from 2.5-beta 3 to 2.52, my tags no longer render red correctly - it comes out as a light grey. This is on a M2 2.9" tag with new batteries and firmware 19 0x13. Verified on a second tag. Reverting the AP back to 2.5-beta3 fixes the issue.

sascha_hemi added the good first issue label 2026-03-20 23:05:57 +01:00

sascha_hemi closed this issue

2026-03-20 23:05:57 +01:00

sascha_hemi commented

2026-03-20 23:05:58 +01:00

@jjwbruijn commented on GitHub (Mar 20, 2024):

Sounds like you discovered partial LUTs! Try setting the tag to 'Always Full LUT' in settings for the relevant tag. This forces a full refresh cycle, and makes sure the tag displays red properly. Some tags deal with partial LUT's better than others

@jjwbruijn commented on GitHub (Mar 20, 2024): Sounds like you discovered partial LUTs! Try setting the tag to 'Always Full LUT' in settings for the relevant tag. This forces a full refresh cycle, and makes sure the tag displays red properly. Some tags deal with partial LUT's better than others

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Reference: starred/OpenEPaperLink#3476