Coldcard Mk4 Firmware v5.1.4: Batch PSBT Sign, Bugfixes & More

COLDCARD Mk4 Firmware 5.1.4 has been released. It comes with batch PSBT signing, enhancements, Sparrow Wallet added as an individual export option and bug fixes.

https://www.nobsbitcoin.com/coldcard-mk4-firmware-v5-1-4/ 

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