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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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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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A later post on SN shared the above Tweet as well.
Coldcard Mk4 - NFC demo #16602
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