🎥 Demonstration of transferring data from NFC-equipped COLDCARD wallet MK4 to mobile | @econoalchemisttwitter.com/econoalchemist/status/1507746564994863105
22 sats \ 4 comments \ @cryptocoin 26 Mar 2022 bitcoin
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0 sats \ 3 replies \ @cryptocoin OP 26 Mar 2022
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 \ 2 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 \ 1 reply \ @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 \ 0 replies \ @cryptocoin OP 27 Mar 2022
A later post on SN shared the above Tweet as well.
Coldcard Mk4 - NFC demo #16602
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