Matter setup sticker faded, peeled, or unreadable? What to do

Thermal-printed labels don’t age well. Heat, sunlight, and a few years on a powered device turn a crisp Matter QR into a gray smudge that no camera will read. If your setup sticker is fading or peeling, here’s how to recover.

Try to read what’s left

• Boost the contrast. Photograph the label in bright, even light, then raise contrast in your phone’s photo editor. A “dead” QR often still scans from an enhanced photo.
• Fall back to the digits. The 11- or 21-digit manual pairing code printed under the QR is plain text, and even a partly faded one is often still legible when the QR isn’t. Typing it in works exactly like scanning.

Find a second copy of the code

The factory code is usually printed in more than one place, and those copies often survive when the on-device one doesn’t:

• The box or the quick-start card.
• A second label on the device base or inside a battery compartment.
• The manufacturer’s app, on the device’s detail screen.

Where to find the Matter pairing code →

If nothing is readable

• The device is still paired? You don’t need the old sticker. Share it to a new ecosystem from the app that controls it now, which issues a fresh temporary code. See re-pairing a device you lost the code for.
• It isn’t paired? Contact the manufacturer with the serial number; some can re-issue the commissioning code.

Capture it while it’s still readable

The lesson of a faded sticker is to copy the code before it degrades. ReMatter reads the QR (or the manual code) once and stores a permanent, searchable copy on your phone, and can print a fresh paper QR sheet, so you’re never again relying on a sticker that’s slowly disappearing.