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Pre-order an MK4 now. Gloves not included.

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

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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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 šŸ”„šŸ”„šŸ”„ 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! šŸ‘€

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

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

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