Key Chains
The documented key-chain firmware reference uses the 1.54-inch class SE0154MNP36-FNG-A0, with 200 × 200 pixels and black, white, yellow, and red. This is a four-color display palette, independent of the enclosure color.
Before choosing
The supplier document uses 1.50-inch sizing while the firmware identifies the 1.54-inch class. Use the exact panel and finished-product dimensions to check fit; the size class is not a precise enclosure measurement.
The same size class is also included in Price Tags. Confirm the exact product, enclosure, and any included attachment in its storefront listing. The registered enclosure colors below do not establish a key ring, battery arrangement, or accessory bundle.
First update for NFC-capable models
Use this sequence only when the exact key-chain model specifies NFC updates.
- Read the NFC getting-started guide.
- Let the app identify the connected display through Metadata.
- Prepare square artwork using the reported dimensions and four-color palette.
- Keep the phone in place through preparation, transfer, and refresh until the app confirms completion.
Use text and image preparation for artwork, and troubleshooting if the update is interrupted.
Registered product identity
The current register has five key-chain SKUs with Black, Pink, Red, Silver, and White enclosure variants. See product identifiers for the reviewed registration snapshot. These records are inactive, and their exact panel assignments are unconfirmed. Use the engineering examples on this page only after identifying the actual hardware.