Shell Summer Updates: BTC Multisig, SeedQR, Stealth Passphrases Arrive on Keycard Shell
tl;dr: With the past couple weekly updates we improved seed import, including SeedQR support; increased security for pro users with BTC multisig support and 13th/25th word passphrase.
| Topic | What shipped | Why you’ll feel it |
|---|---|---|
| Seed-phrase & security |
| Setups are faster and typo-proof compared to click-button wallets. Also, try out BTC Multisig with Sparrow! |
| Design & UX |
| The device looks as smooth as it feels |
If you’ve ever imported a 24-word seed on a wallet with 2 buttons you know how slow it is. Here's how we just build a flow 10x better than that:
- Point your camera at a SeedQR → wallet restored in < 10 seconds
- Type a secret 13áµ—Ę°/25áµ—Ę° word on-device to create hidden wallets
- Type in quicker: with irrelevant letters greyed-out
- Bitcoin multi-sig - such as with Sparrow
- Updated Ethereum ABI database - see what you sign decoding
Colors and titles fonts update. And every QR screen has an escape button. Long-press threshold doubled to 150ms so accidental double-taps disappear.
Keycard Shell is still in pre-order for €99 (€50 off the launch price) and ships in October. Only ~10 prototype testers exist today; secure your spot in the Founders’ Batch below.
👉 Reserve yours at keycard.tech/keycard-shell
We aim for 4 open-source firmware drops a month, each reproducible from GitHub.
Questions or feature ideas? Jump into our Discord or ping us @keycard_ on X - we build what you ask for.