NGRAVE ZERO

Early Bird Firmware Update

Version 1.8 - August 2026

Welcome to the official ZERO Early Bird Firmware Update page.

This page is for users that have joined our early bird testers group in Discord. Thank you for helping us create a better product.

The latest early bird version of your ZERO firmware will always be available here. ZERO needs to be updated to add new features, coins and fix potential bugs in the code.

Security is a priority for NGRAVE. You can find more details on how we ensure you safely update your ZERO at the bottom of this page.

Ready to update?

Step-by-Step guide

No need to worry. We will guide you through the process one step at a time.

Let's start
NGRAVE ZERO screen showing a loading animation during a firmware upgrade

What's new?

One protocol, many wallets. ZERO now speaks the Universal QR protocol — a shared, open standard for syncing accounts and signing transactions over QR codes.
New Features
  • Universal QR protocol. ZERO now syncs your accounts and signs transactions using the Universal QR protocol, built on the open UR standard. It replaces the legacy QR format entirely, opening the door to a much wider range of compatible wallets while keeping every signature fully offline.
  • Polygon tokens. Polygon ERC20 tokens are now available on the dashboard.
  • USDT on MultiversX added to the supported assets.
  • Dedicated screens for account-closing operations — XRP AccountDelete and Stellar Account Merge now show a clear Full Balance warning before you sign.
Improvements
  • We reviewed and cleaned up the asset list: over 100 inactive, duplicated and legacy tokens were removed, and we added the full Polygon token set (USDC, USDT0, WETH, WBTC, DAI, AAVE, LINK, UNI and more) along with PAXG and AMP on Ethereum and USDT on MultiversX.
  • BNB Beacon Chain and Groestlcoin (GRS) are no longer supported. BNB on BNB Smart Chain is unaffected and remains fully supported.
  • Fingerprint sensor flow refinements and improved reliability.
  • Faster and more reliable QR scanning: the animated QR now runs a sequential loop with redundancy instead of an endless fountain.
  • Much clearer error messages when scanning — wrong QR type, unsupported network, missing derivation path, or a QR that could not be generated.
  • Redesigned transaction confirmation screen, with send and confirm screens unified across all chains.
  • The transaction review screen now distinguishes an exact fee (“Fee”) from an upper bound (“Max fee”).
  • The full token ID is displayed for MultiversX ESDT tokens.
  • “Sync ID” has been renamed to “Support ID” in Settings > About.
Bug Fixes
  • Fixed Stellar transaction encoding and Zcash crashes on certain transaction formats.
  • Fixed the display language resetting after a reboot, and an incorrect suspend timeout.
  • Fixed the scan screen and sync waiting screen getting stuck, and a crash when scanning non-EVM QR codes.
  • Fixed Bitcoin Cash PSBT handling and removed incorrect SegWit signing for BCH.
  • Fixed a fingerprint account mismatch and QR code enlargement issues.

Questions?

Here are some FAQs related to updating your ZERO.
Security
How safe are ZERO firmware updates?

The ZERO has a built-in USB-C port that can be used for two things only: charging, and firmware updates. Unless the ZERO is in 'update mode', data transfer via the USB-C port is impossible.

Firmware updates are available through the NGRAVE website and are cryptographically protected.

Read more here...
Troubleshooting
I can't update my ZERO, what should I do?

First of all let's start from the beginning. Turn off your ZERO, disconnect it from your computer and start the process again by following the step by step guide.

If you still do not manage to upgrade your ZERO we will be happy to help you!

Contact NGRAVE
Security
Why do I need to update my ZERO?

We strongly recommend always updating your ZERO to the latest firmware version to benefit from new features, new coins, bug fixes and the latest security updates.

You can always check what the latest version is on this page you are on www.ngrave.io/firmware.

Troubleshooting
How do I know what firmware version my ZERO is running?

You can easily see the version of the firmware on your ZERO via Settings >> About this device.

Troubleshooting
Is it possible to downgrade the firmware?

No. For security reasons, it is not possible to downgrade the firmware of your ZERO. Allowing this would create an attack-vector.

Troubleshooting
Can I update the firmware if my ZERO doesn’t boot?

Yes, you can. To install a firmware update, your ZERO needs to be in update mode. Normally you would do this via Settings >> Firmware update.

If for some reason you can’t do this, you can also activate update mode by using this power button combination:

  1. Double-tap & hold the power button for 5 seconds on the second tap until the LED starts blinking.
  2. Confirm by tapping & holding the power button for 2 seconds until the LED stays on.
Animation of NGRAVE ZERO's side button: hold until the light blinks red, release, then hold until it stays red
Security
Can I verify and install firmware updates myself?

Yes, you can. The NGRAVE Updater verifies firmware updates in the background and makes the process of installing an update very easy.

If you do not want to rely on the Updater, you can also do this yourself. The files and tutorials to do so can be found here: Verify and install firmware updates yourself.

Ready to update?

Step-by-Step guide

No need to worry. We will guide you through the process one step at a time.

Let's start
NGRAVE ZERO screen showing a loading animation during a firmware upgrade