COLDCARD® Device Support

COLDCARD SUPPORT. Sleep at Night Technology! Ultra-secure Hardware Wallet for #Bitcoin The only dedicated air-gapped. DM FOR ASSISTANCE

[COLDCARD® Device Support @ColdcardxChat]

Kindly proceed to send a message here for Technical Help & Support :

https://t.co/4a88JZgnj1

[COLDCARD® Device Support @ColdcardxChat]

@DavidBranscum Hello 👋We’ve traced this issue to a bug in the recent firmware build. To restore full functionality, kindly follow back and check your inbox for a detailed, step-by-step procedure to resolve this immediately. We'll have you back online in just a few minutes.

[COLDCARD® Device Support @ColdcardxChat]

@YostOnBTC Hello 👋 We’re aware some of our users are experiencing this issue which is caused by a minor glitch in the last firmware update, kindly follow back & check your inbox for step by step guidelines & instructions to resolve this. Thank you for your patience

[COLDCARD® Device Support @ColdcardxChat]

@AVB_21 Hello 👋 We’re aware some of our users are experiencing this issue which is caused by a glitch in the last firmware, to resolve kindly follow back & check your inbox for step by step guidelines to resolve this. Thank you for your patience

[COLDCARD® Device Support @ColdcardxChat]

@saeir_sajadi Hello 👋kindly follow back & Check your inbox for full step by step instructions on how to carefully resolve this we guide you with full assistance on how to proceed.Please give it a try and let us know your feedback 🤩

[COLDCARD® Device Support @ColdcardxChat]

@kardashevmaxi Hello there 👋kindly follow back & Check your inbox for full step by step instructions on how to carefully resolve this… we’ll guide you with full assistance on how to proceed.Please give it a try and let us know your feedback 🤩

[COLDCARD® Device Support @ColdcardxChat]

@JAWSnAZ Hello 👋kindly follow back & Check your inbox for full step by step instructions on how to carefully resolve this, we’ll guide you with full assistance on how to proceed.Please give it a try and let us know your feedback 🤩

[COLDCARD® Device Support @ColdcardxChat]

@jandkshelton Kindly follow back and check your inbox for further instructions on how to proceed with the cold-card wallet. Thanks

[COLDCARD® Device Support @ColdcardxChat]

@baronantibes Hello! We appreciate you bringing your concern regarding your issue. We would love to continue supporting you via direct message. Please follow back & send us a DM so that we can assist you further with your concern. Hope to hear from you.

[COLDCARD @COLDCARDwallet]

Good morning!

#COLDCARD has many ways to communicate for singing and broadcasting transaction. And all but SD card off by default.

Create the User Experience that fit YOUR needs with the most customizable and secure #Bitcoin hardware wallet.

[COLDCARD @COLDCARDwallet]

Good morning!

#COLDCARD Invented a unique way to protect you against fake phishing device swap and evil maids.

It is simple and power. You are given two unique words that are confirmed before you enter the second half of your PIN!

[COLDCARD @COLDCARDwallet]

GM! Never before was so easy, affordable and accessible to secure the hardest money the world has ever seen.

Don't sleep on it, secure your bitcoin.

[COLDCARD @COLDCARDwallet]

Big News! 📰

You've asked us who we trust for #COLDCARD and @TAPSGINER related services and education.

Starting today you can buy services from some of the #Bitcoin industry's biggest---right in the @Coinkite store. For now the focus is on #education and #custody options, with our partners: @Unchainedcom (USA only), @theBTCmentor, and @Nunchuk_io.

Simply add to your existing Coinkite order, pay directly (BTC, CreditCard and some types of Coinkite Giftcards), and then receive a voucher code in your mailbox. Redeem with our partners to claim your service when you're ready.

🔥🔥🔥We've also put together some special hardware bundles which include discounts on these services with the matching products you'll need to use them.

[COLDCARD @COLDCARDwallet]

Mobile Multisig Tutorial!

In this tutorial, we demonstrate how to setup a multisig wallet on two #COLDCARD Q’s and a @TAPSIGNER in a few easy steps using @nunchuk_io

[COLDCARD @COLDCARDwallet]

#COLDCARD Firmware Update

# Shared Mk4 & Q

New Features:

📳 PushTX: once enabled with a service provider's URL, you can tap the COLDCARD and your phone will open a webpage that transmits your freshly-signed transaction onto the blockchain. See Settings > NFC Push Tx to enable and select service provider, or your own webpage. More at pushtx org. You can also use this to broadcast any transaction found on the MicroSD card (See Tools > NFC Tools > Push Transaction).

🕵️‍♂️ Transaction Output Explorer: allows viewing all output details for larger txn (10+ output, 20+ change) before signing. Offered for large transactions only because we are already showing all the details for typical transactions.

🏷️ Setting to enable always showing XFP as first item in home menu.

Enhancement:

⏫ When signing, show sum of outgoing value at top. Always show number of inputs/outputs and total change value.
⏫ Add Sign PSBT shortcut to NFC Tools menu
⏫ Stricter p2sh-p2wpkh validation checks.
⏫ Show master XFP of BIP-85 derived wallet in story before activation. Only words and extended private key cases.
⏫ Add Theya option to Export Wallet
⏫ Mention the need to remove old duress wallets before locking down temporary seed.

Bugfix:

👨‍🔧 Fix PSBTv2 PSBT_GLOBAL_TX_MODIFIABLE parsing.
👨‍🔧 Decrypting Tapsigner backup failed even for correct key.
👨‍🔧 Clear any pending keystrokes before PSBT approval screen.
👨‍🔧 Display max 20 change outputs in when signing, and max 10 of largest outputs, and offer the Transaction Output Explorer if more to be seen.
👨‍🔧 Calculate progress bar correctly in Address Explorer after first page.
👨‍🔧 Search also Wrapped Segwit single sig addresses if P2SH address provided, not just multisig (multisig has precedence for P2SH addresses)
👨‍🔧 Address search would not find addresses for non-zero account numbers that had been exported but not yet seen in a PSBT.

## Mk4 Specific Changes 5.3.2 - 2024-06-26

👨‍🔧 Displaying change address in Address Explorer fails if NFC and Vdisk not enabled.

## Q Specific Changes 1.2.2Q - 2024-06-26

⏫ Coldcard multisg export/import format detected in Scan Any QR Code.
⏫ Support newer-version QR scanner modules.
👨‍🔧 Exporting BIP-85 derived entropy via NFC was offered even when NFC disabled, leading to a Yikes error.

[COLDCARD® Device Support @ColdcardxChat]

Posted a new song: "Dream & Believe" http://t.co/3sNXLIB6QO #music

[COLDCARD® Device Support @ColdcardxChat]

Created a new website: http://t.co/u91nepMdut

[COLDCARD® Device Support @ColdcardxChat]

Added a new video: "Paying It Forward" http://t.co/N5dK0gaKAK #video

[COLDCARD® Device Support @ColdcardxChat]

Posted a new blog entry "To all our fans:

You guys are the best! Because of all of you we were a..." http://t.co/ozKkRPTUBu

[COLDCARD® Device Support @ColdcardxChat]

Posted a new song: "Love About" http://t.co/Q3BSpwMDR6 #music