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Dead Pixel Checker v1.0 by classyham

Released Mar 11, 2025 · Tools
23,450 downloads on GitHub · Source code

Cycles the screen through solid colours so dead pixels stand out

Tools.3dsx

Install on your 3DS

QR code of the download link for DeadPixelChecker.3dsx

Method 1Scan the QR code
With 3dsDL (Scan QR Code). Save it to sdmc:/3ds/.

Method 2Send it to your 3DS
Open 3dsDL › Receive on the same Wi-Fi, then press:
Send to 3dsDL
It saves to 3dsDL's Download Folder (Settings), so set that to sdmc:/3ds/ first. Updating? Use Method 1: Send keeps the old file next to the new one.

Other ways to install

From your SD card: copy DeadPixelChecker.3dsx into /3ds/ and start it from the Homebrew Launcher.

Files

FileSizeSHA-256
DeadPixelChecker.3dsx114 KB ede6ba23…89d2 Download

Downloads come from the developer's GitHub release while it's there. If GitHub stops serving a file, or the file there changes, the same link serves our copy.

Screenshots

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About Dead Pixel Checker

Steps through the solid colours people normally use to look for dead pixels. A dead or stuck pixel shows up as a dot that doesn't match the rest of the screen. Written with Citro2D.

Release notes

v1.0 · 1.0.0 · Mar 11, 2025

The initial release.

Drop in 3ds folder on your SD card and launch through the Homebrew Launcher.

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