Ledger Blue firmware - FAQ

How can I update my Ledger Blue device?
Please refer to our update guide for step by step instructions.

What if my Ledger Blue displays MCU firmware upgrade needed?
If you have followed the instructions of step 6 in our update guide and you are still stuck, make sure the USB cable is fully inserted on the device and on the computer

What to do if I am stuck somewhere in the update?
Please carefully read the step by step instructions. Still having issues?

  1. Close Chrome and all other applications (crypto wallets, Geth, Parity, Mist, Bitcoin Core, etc).
  2. Turn OFF VPN and anti-virus.
  3. Quit, reinstall and restart the Ledger Manager.
  4. Change the USB-cable if possible.
  5. Restart the computer.
  6. Try another computer.

Is it mandatory to update my Ledger Blue firmware?
Updating your Ledger Blue to firmware 2.1 is strongly recommended, but there is no mechanism to force you to upgrade.

What will happen if I do not update my Ledger Blue?
We strongly recommend updating the firmware of your Ledger Blue. However, there are no significant consequences if you do not update your device at once. The Ledger Wallet applications will notify you to update your device, but you are free to ignore them and the device will continue to work normally.

What is this update for?
The update to firmware version 2.1 introduces user experience as well as security improvements. For more information regarding the specific changes, please refer to the blog post dedicated to this firmware release.

Do I have to upgrade my Ledger Blue right away?
There is no necessity to install the firmware update immediately. It is no problem if you do not have immediate access to your device or if you do not plan to use it in the short term. You will always be able to update to the firmware later, whenever you decide to use your device. 

Is it possible to downgrade from 2.1 to 2.0?
No. For security reasons, it is not possible to downgrade the firmware of your Ledger Blue.

How many apps can I have on my Ledger Blue after the update?
The maximum amount of applications is 11. It does depend on which apps are installed. The new firmware does not expand the memory, but optimizes the usage of storage space by applications.

Many cryptocurrency projects are clones of the Bitcoin blockchain that share most of the signature code (such as Bitcoin, Bitcoin Cash, Bitcoin Gold, Litecoin, Dogecoin, Dash, Zcash, Komodo, Stratis, Posw, Pivx, Viacoin, Vertcoin, Stealthcoin, Digibyte, Qtum, Hcash...). By refactoring all common codes in a library, hosted in the Bitcoin app, we were able to significantly reduce the size of the other apps.

However, installing applications with a completely different code base will still limit the amount of apps to 4 or 5.

Why do I need my 24-word recovery phrase during the update?
The device will be wiped when updating the Ledger Blue firmware. After the update, the private keys that manage your crypto assets in the blockchain will have to be restored on your device. Take out your Recovery sheet on which you saved your 24-word recovery phrase and restore your private keys after the update by following the restoration guide

Could I lose my crypto assets during this update?
Your crypto assets are secured in the blockchain and will be safe as long as the 24-word recovery phrase is properly backed-up on your Recovery sheet and securely stored. Take out the Recovery sheet before starting the update so you can restore your device.

Is your question not listed?
Please contact our support team and describe your problem in as much detail as possible.

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