How to update ledger nano s firmware and mcu version

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Ledger Error Fix: MCU firmware is outdated

Ledger Live and its device do have some errors that many people have reported on cryptocurrency forum sites. However, there are easy fixes. Don’t panic if you see that your firmware is outdated, and you’re not sure what to do, we can help! This error might interfere with your ability to transact with cryptocurrency, but it’s not a problem that will cause you to lose it. If you write down and store your recovery phrase/private key, you won’t run into any indefinite problems accessing your cryptocurrency.Your Ledger device doesn’t share the private key over the internet and instead stores the key locally on the device. This means that you could use the recovery phrase on any other wallet that allows independent recovery phrases to be used to recover funds if you had too. This isn’t the best option as you would be exposing your private key online, so it’s best to fight through any errors that you may run into before making any switches.This is yet another reason that it’s crucial to continuously update your firmware, as you won’t run into as many issues if you are on top of the latest updates.

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Today we are going to go over the steps that you need to take to fix the “MCU firmware is outdated” issue. If your application is saying “MCU firmware is not genuine,” then you should refer to our guide here.The entire process should only take around ten minutes to resolve fully if your problem is not fixed after you follow each step, then you may need to contact Ledger Lives support team to get the problem fixed as quickly as possible.

Steps to fixing

Typically, this problem is fixed when you repair your device, but if it doesn’t resolve, then we have other solutions available to help you.

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Most of the Ledger Live issues can be resolve by updating Ledger Live application!

Download last version Ledger Live for:


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Step 8: Once you have clicked on the settings icon, you can navigate to the “Help” tab and scroll until you find “Repair your Ledger device.” When you see this option click on it and then click on “Repair.”Step 9: Select “Bootloader” in the popup window and click “Repair.” Now you will be able to see that your device is loading, and the screen will disappear.