reply on: 🎥 Demonstration of transferring data from NFC-equipped COLDCARD wallet MK4 to mobile

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0 sats \ 7 replies \ @cryptocoin OP 26 Mar 2022 \ on: 🎥 Demonstration of transferring data from NFC-equipped COLDCARD wallet MK4 to mobile | @econoalchemist bitcoin

Pre-order an MK4 now. Gloves not included.

Few boxes of COLDCARD Mk4 dev/beta units on the way to you ✌️

5.0 firmware wip branch here https://github.com/Coldcard/firmware/pull/90

Reserve your Mk4 here https://store.coinkite.com/store/mk4

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0 sats \ 5 replies \ @cryptocoin OP 26 Mar 2022

Here's a Tweet by NVK showing the best wireless signal connection between the MK4 and an iPhone.

This is the NFC sweet spot for iPhone and Mk4 @COLDCARDwallet

Lean in, between 5 and 8 rows.

(Had to use my dead phone taking a pic with my good phone)

Until wallets integration happen, you can use any NFC tools to get addresses, xpub, etc.

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0 sats \ 3 replies \ @cryptocoin OP 27 Mar 2022

Another demonstration:

Its time to show off @Coinkite’s newest @COLDCARDwallet, the Mk4 🔥🔥🔥 In this quick video tutorial, I go through the process of extracting a wallet address from the hardware device onto a mobile phone. Take a look! 👀

[Video]

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0 sats \ 1 reply \ @cryptocoin OP 27 Mar 2022

A later post on SN shared the above Tweet as well.

Coldcard Mk4 - NFC demo #16602 https://twitter.com/eh_deee/status/1507820692401709057