Connecting Coldcard MK4 Wallet: Practical Guide for Sparrow, Electrum & Nunchuk (USB, MicroSD & NFC)

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🔒Get your very own Coldcard super-secure hardware wallet here: store.coinkite.com/promo/1EAF...
If you have not seen the Coldcard setup video, check it out here:
Coldcard MK4 Setup Guide Secure Your Cryptocurrency Today | Step-by-Step Tutorial
• Coldcard MK4 Setup Gui...
Unlock the full potential of your Coldcard MK4 hardware wallet in this comprehensive tutorial. Your cryptocurrency assets' safety is paramount, and Coldcard offers one of the most secure storage solutions on the market. However, to truly harness its power, it's important to know how to connect it with various external wallets effectively.
In this video, we'll walk you through each step of the process, demonstrating how to connect your Coldcard MK7 to the Sparrow Bitcoin Wallet, Electrum Bitcoin Wallet, and Nunchuck Bitcoin Wallet. We'll guide you through using different methods of transaction-whether it's via USB Cable, MicroSD Card, or NFC Signal.
🔌 For the Sparrow Bitcoin Wallet, we'll explore how to connect using the USB Cable.
💾 With the Electrum Bitcoin Wallet, we'll teach you how to use the air-gapped solution with the MicroSD Card.
📲 Lastly, for the Nunchuck Bitcoin Wallet, we'll dive into using the NFC Signal for air-gapped transactions.
Regardless of your preference, this guide is sure to help you secure your transactions while using your Coldcard MK4 wallet. Don't forget to hit the like button if you find this video helpful, and subscribe to our channel for more valuable cryptocurrency insights. Comment below if you have any questions or suggestions for our next video. Happy Hodling!
00:00 - 🔌 Unboxing and Setup Recap
01:36 - 🐦 Connecting Coldcard to Sparrow Wallet via USB
12:05 - 📀 Setting up Airgapped Transactions with Electrum Wallet via MicroSD
22:34 - 📡 NFC Transactions with Nunchuck Wallet
28:30 - 🔍 Overview and Comparisons
Coldcard Security FAQs
coldcard.com/docs/faq
Coldcard open-source firmware repository on Github
github.com/coldcard/firmware
💡 DISCLAIMER: This video is for educational purposes only and should not be considered financial advice. Always do your own research before investing in cryptocurrencies.
👉 Don't forget to LIKE, SHARE, and SUBSCRIBE for more content on cryptocurrency and DeFi! Hit the notification bell to stay updated on our latest videos. Drop your questions and suggestions in the comment section below, and I'll do my best to address them in future videos or during our live Q&A session.
#coldcard #coldstorage #bitcoin

Опубликовано:

3 авг 2024

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Комментарии : 35

@CryptoDad Год назад

🔒 Unlock the power of your Coldcard MK7 Wallet with our practical guide on how to connect it with Sparrow, Electrum, and Nunchuck wallets. Learn the different ways to transact via USB, MicroSD, and NFC, and find the method that suits your needs. Don't forget to like, share, and subscribe for more useful crypto insights!💡🔒Get your very own Coldcard super-secure hardware wallet here: store.coinkite.com/promo/1EAFA81551CF2D7F4897

@ROImediaGuy 3 месяца назад

Hey there @cryptodad I've tried installing sparrow and nunchuk and Avast keeps alerting me to possible trojans. I've even gone so far as to ensure I've downloaded the packages from official sites (Sparrow- I've checked certificates PGP keys, hashs etc.) and still get possible trojan alerts. Is there an antivirus that specializes with BTC enough to have analyzed the code for false positives etc? thanks in advance.

@cpaBTC 8 месяцев назад

Best video on this topic ive seen. Thanks!

@Vigorf Год назад

Good normal length video .... jeeezzzz that 2 hours are crazy no time for that

@markandrow4010 Год назад

Thanks, great job, 👍👌

@paulvincent1494 Год назад

Sparrow is the best wallet for PC and should only be used air gapped.

@ikust007 Год назад

Brilliant! Merci beaucoup

@MrFooChops 11 месяцев назад

More ColdCard videos please

@southbayproducts5371 Год назад

Thank you Sir. waiting for this one any more cold card tips will be great

@gibbons7047 10 месяцев назад

Why did you choose Electrum for the Airgapped Transaction? Are there any benefits to using Electrum vs Sparrow? Thanks!

@fidadida4870 3 месяца назад

Hi your video's are really helpful. I have some questions and I haven't been able to find the answers anywhere. I hope you know this. Once I've exported a JSON file to import in Sparrow can I delete the JSON file from the sd card? If I don't delete it can I always just import the first JSON file on the sd card or do I need to export it again from the coldcard when I need it for a new computer later? I assume the first JSON file would be fine to use?

@Firemedic2105 4 месяца назад

NFC is airgapped? So there is no possible way to hack over nfc?

@disco.jellyfish 4 месяца назад

It asks me to "Insert an SD card to do this operation" when I am trying to generate a wallet file for Sparrow. But I do have an SD inside the card reader for exactly that purpose but the coldcard doesnt seem to recognize it.

@kimgaugemusic 11 месяцев назад

Great tutorial! One question, how is transferring data via SD card more secure than the plain USB cable? Aren't they both touching the computer and inevitably interfacing with the internet? If the private key is secured by the two security chips on the Coldcard what is the worry?

@CryptoDad 11 месяцев назад

The cards don't really have to know about new wallets. The cards have the master private key. If you've added new cryptos, using one card, then they will be on the app. When a signature is required from a card, it basically reads the master private key from the card. So any card will work. I'm just kind of spit balling here, but I'm pretty sure that's the essence of how it works. A good question by the way.

@kimgaugemusic 11 месяцев назад

The only weakness I can see is if the private key momentarily leaves the secure chip and goes into a flash memory (similar to the Trezor physical hack flaw that was discovered) but I can't imagine that is how the Coldcard works. I'm sure they've learned from that mistake. They must run checksum algorithms on the files on the SDcard to ensure nothing malicious is entering the Coldcard, and the transaction is passed to the secure chip for signing and not the other way around. I don't know, it just mystifies me. I would have thought that passing the transactions via QR codes and a camera would be a better way to go. But then maybe there are malicious QR codes? Anyway, thanks for getting back to me!@@CryptoDad

@d-boy1644 5 месяцев назад

can you use the same wallet created in nunchuck for multiple transfers? or do i need keep generating different wallets from the cc4 key? thanks

@Still-Swing 7 месяцев назад

do you need three physical MK4 coldcards in order to do multisig? Thanks

@GTop9-2000 7 месяцев назад

Hi. Have a problem, where u connect the usb, my computer cant find any devise :(

@pistolpete7777 2 месяца назад

mine wont connect to my coldcard. i get an error that says "error connecting to wallet" .."error executing hwi"... any help?

@zawmintun5099 Год назад

Blockstream jade please

@pedropichardo290 11 месяцев назад

quick question, why you keep your coldcard connected to the usb-c cable while doing air gap sign?

@CryptoDad 11 месяцев назад

Because the device requires power. I mentioned that it is connected to a power brick, not my computer. There are battery powered chargers, but I consider this overkill. I'm not worried about hackers in my power outlets.

@MrFooChops 11 месяцев назад

@@CryptoDadAlthough unlikely it is possible the power brick can collect data from the CC. These days even regular usb cables have been known to have firmware in them that collects data transmitted through them and sends that to the hacker. Coinkite stocks a 9V battery connector to eliminate any doubts

@pinoyrunningpenguin 8 месяцев назад

@@CryptoDad why not just use a power bank?

@ydysai 6 месяцев назад

@@pinoyrunningpenguina power bank could have a hacking device attached to it too. /s Amazes me the level of paranoia people have ! Jeez just use a USB instead. Coldcard and Sparrow are both open source. It's not like you are verifying the contents of the SD card and decrypting the hex values of the transaction signature or the PSBT. USB is actually more secure than using an SD card because SD card file can be manipulated as soon as it is connected to your computer. But a USB to sparrow wallet communication cannot be intercepted as easily as modifying a file on external storage.

@iah1 Год назад

The "AI you" just seems to be getting younger.

@CryptoDad Год назад

I noticed that doesn't have any age spots either!

@worlverineloganx384 Год назад

Ok… time to show how to work with the passphrase

@chaosreigns4390 Год назад

I like using bluewallet for mobile.

@ricochetrabbit4618 4 месяца назад

Aha!!!!.... Krypto Dad takes vitamin D3 and K2!!!!!

@CryptoDad 4 месяца назад

At least the AI version of me does.

@user-be2nz3nb9q 14 дней назад

This is so complicated and confusing for a beginner.

@CryptoDad 14 дней назад

@@user-be2nz3nb9q I totally agree. I’m not a huge fan of the cold card, but it is definitely one of the most secure solutions out there and has a big commitment to transparency. However, I would definitely not recommend it for beginners. You should check out my videos covering Ledger and Trezor, they are the most mainstream hardware wallets out there

@dasfahrer8187 2 месяца назад

Interesting, but if this is what's required to do self-custody of the BTC you own then BTC doesn't have a future. Enough people aren't going to do this to matter, so when others' BTC, that is being held by Coinbase or whatever other custodial exchange they have it on, gets confiscated by the various gov'ts, there will be so little BTC available for circulation at that point that it won't be worth spending the money to upkeep the infrastructure required to support it.