Independent wallet support

Coldcard Firmware Update Problem? Update Help

Use this Coldcard firmware troubleshooting page when an update appears stuck, the update file is not recognized, the device is in update mode, or a download prompt looks suspicious.

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Independent wallet security guidance. This site is not Coldcard.

Coldcard help topics

Wallet security

Quick issue summary

Ledger and Trezor support teams should never ask for a recovery phrase, seed phrase, private key, or remote access to a wallet.

Recently Reported Issues

Wallet users recently reported phishing attempts involving fake firmware update pages.
Some users recently reported zero-balance displays after restore, network changes, or passphrase confusion.
Others recently reported fake support accounts asking for recovery phrases or remote access.

Coldcard wallet guidance

A Coldcard firmware update problem should be handled through official Coldcard sources, compatible microSD media, model-specific steps, and offline recovery phrase safety. No update should require seed words online.

Common wallet topics include Coldcard firmware update problem, stuck update, update file not recognized, microSD firmware issue, PSBT broken after update, or fake Coldcard download warning.

Never share your recovery phrase, seed phrase, private keys, or PIN.

Wallet topics

Common Coldcard Help Topics

Coldcard PSBT signing problem

Retest PSBT and SD card signing after firmware work.

Open

Coldcard wallet not detected

If wallet software cannot see exports after an update, use detection checks.

Open

Coldcard recovery phrase help

Review recovery safety before reset, restore, or risky update steps.

Open

Common wallet scams

Fake firmware downloads and support pages often ask for seed words.

Open

Coldcard support hub

Return to Coldcard support for firmware and SD card help.

Open

Report this firmware issue

Report non-private firmware symptoms to PhraseWallet.

Open

Coldcard / Bitcoin wallet app Troubleshooting Checks

Coldcard / Bitcoin wallet app troubleshooting is safest when you separate display, sync, device, firmware, and recovery phrase concerns before changing wallet settings. Use official Coldcard support links for device-specific instructions.

Official download

MicroSD update file

Device update mode

Backup readiness

Post-update PSBT test

Coldcard Troubleshooting Checks

Use these checks to separate ordinary setup friction from wallet safety risk before you reset, restore, reinstall, or open wallet support portals.

PSBT direction

Separate unsigned PSBT export, Coldcard signing, signed PSBT import, and Bitcoin broadcast. Importing the wrong file makes signing look broken.

SD card handling

Card format, file location, filename, adapter reliability, and stale files can all interrupt an air-gapped signing or firmware workflow.

Bitcoin wallet context

Missing balances can come from xpub, script type, derivation path, account index, gap limit, wallet sync, or passphrase context.

Firmware source

Use verified official Coldcard firmware paths. Fake downloads and support pages may ask for seed words to complete a fake update.

Recovery phrase handling

Keep seed words offline and private. Do not photograph them, paste them into support, or use a validation page from an ad or message.

Transaction review

Read the Coldcard screen before signing. Reject unexpected destination, fee, coin selection, change address, or account context.

Likely Causes

Start with the most common causes before resetting the wallet, restoring from a recovery phrase, or trusting a support message.

The firmware file was downloaded from a non-official link, search ad, message, or cloned page

The microSD card format, file name, file location, or model-specific update package does not match expectations

The device is waiting in update mode, locked state, or a confirmation screen

Power or card reliability interrupted the update attempt

Wallet software, PSBT signing, or exported wallet context needs retesting after firmware work

A fake support helper is asking for seed words to validate or complete the update

Recovery And Troubleshooting Steps

Step 1

Verify firmware source first

Use official Coldcard sources and model-specific instructions. Do not continue from ads, comments, direct messages, or pasted download links.

Step 2

Confirm backup readiness offline

Before risky firmware work, make sure the recovery phrase and any intentional passphrase context are understood and stored offline. Never type them into an update page.

Step 3

Check microSD and device state

Use compatible media, place the expected file where the device instructions require it, keep power stable, and follow the screen prompts without rushing.

Step 4

Retest wallet workflow

After updating, verify wallet export, PSBT signing, signed PSBT import, and balance display before relying on the wallet for urgent transactions.

Coldcard / Bitcoin wallet app And Device-Specific Help

Firmware file

Confirm the file is intended for the exact Coldcard model and came from the official source, not a third-party update mirror.

MicroSD card

If the device cannot see the file, test card format, card size, filename, and whether other files are confusing the workflow.

Post-update checks

Retest exported wallet files, xpub context, PSBT signing, and signed transaction broadcast in the wallet app.

Coldcard Official Support Checklist

For official Coldcard help, downloads, updates, or contact options, use Coldcard's official portal and verified official channels. This page helps you prepare safe, non-private context before opening support portals.

Device model

Coldcard / Bitcoin wallet app version if known

Issue type

Screenshots without private info

Never include recovery phrase

Never include private keys

Coldcard Recovery Phrase Safety

No legitimate wallet guidance should need your recovery phrase.

A recovery phrase controls wallet restoration. Treat it as private self-custody information and review how phrases work before using any wallet.

Recovery Phrase Help What Is a Recovery Phrase?12 vs 24 Word Phrase

Report wallet issue

Describe Your Wallet Problem

Submit a non-secret wallet problem for moderated review and safer routing. PhraseWallet is independent and this is not official wallet support or emergency recovery assistance.

Never enter your recovery phrase, private key, password, PIN, or payment details.

Reports are reviewed before use and should include only device, app, country, and issue context.

FAQ

Common Coldcard Help Questions

Why is my Coldcard firmware update not working?+

Common causes include wrong firmware source, incompatible microSD card, wrong file location, model mismatch, device prompt state, or power interruption.

Does Coldcard firmware update require my seed phrase online?+

No. Backup readiness matters, but firmware downloads, support chats, and validation pages should not ask for recovery words.

What should I check after updating Coldcard?+

Check wallet export, Bitcoin wallet app import, PSBT signing, signed PSBT import, balance display, and transaction review flow.

How do I avoid fake Coldcard firmware downloads?+

Start from verified official Coldcard sources and avoid search ads, DMs, comments, mirrors, and pages that ask for seed words.