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Extend lcd contrast range to full ST756x 6-bit range#521

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ShaTie wants to merge 1 commit intoNext-Flip:devfrom
b4ck5p4c3:extended-lcd-contrast
Open

Extend lcd contrast range to full ST756x 6-bit range#521
ShaTie wants to merge 1 commit intoNext-Flip:devfrom
b4ck5p4c3:extended-lcd-contrast

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@ShaTie
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@ShaTie ShaTie commented Feb 14, 2026

What's new

Extends the LCD contrast adjustment range from ±8 to -32..+31, covering the full 6-bit (0-63) range of the ST756x display controller.

This allows proper contrast calibration for compatible replacement displays that may have different contrast characteristics than the stock screen.

For the reviewer

  • I've uploaded the firmware with this patch to a device and verified its functionality
  • I've confirmed the bug to be fixed / feature to be stable

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