Guides
Setup codes, explained.
Practical answers for when a Matter setup code goes missing, and short how-tos for the ReMatter app.
Matter codes
Lost your Matter QR code? Here's how to re-pair the device
Lost the Matter setup QR code or sticker on a smart home device? Here's what still works, what doesn't, and how to avoid the problem next time.
Read the guide →How to find your Matter pairing code
Where to find the Matter QR code and the 11- or 21-digit manual pairing code on a smart home device, its packaging, and in the app.
Read the guide →Matter setup sticker faded, peeled, or unreadable? What to do
The Matter QR sticker on your device is faded or peeling and won't scan. Here's how to recover the pairing code and still commission the device.
Read the guide →What is the Matter manual pairing code? 11- vs 21-digit explained
The Matter manual pairing code is the numeric alternative to the QR. Here's what the 11- and 21-digit versions mean and when you'd use each.
Read the guide →
Using ReMatter
Group or merge devices
A group holds several devices that live together. A merge makes one device out of several codes. How to do each one, and how to undo it.
Read the guide →Arrange your device list
Drag devices and groups into the order you want, reorder your floors, and know where a new scan goes.
Read the guide →The free version and ReMatter Pro
The free version keeps 10 codes. How ReMatter counts them, where to see how many are left, and what ReMatter Pro adds.
Read the guide →Back up and restore your codes
Export every code to one backup file, keep the file off your phone, and restore it on a new phone. What a restore adds and what it skips.
Read the guide →Typed codes and scanned codes
Why a scanned QR keeps more than a typed code, which codes you can type in, and why Z-Wave codes are scan-only.
Read the guide →Add a saved device to your smart home
Set up a Matter device again from its saved code, with its saved name ready to paste.
Read the guide →Print a paper backup of your codes
The QR sheet puts every saved code on paper, sorted by floor and room, so you can set up a device again without your phone.
Read the guide →