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Create a wallet with Shamir Backup
Shamir backup is available on both the Trezor Model T and the Trezor Safe 3.
Important remarks before you start:
- You will be presented with a sequence of 20 or 33 English words, each displayed on the screen of your device. These words will never be shown on your computer screen, so do not use backups offered to you by your computer.
- These wordlists are referred to as recovery shares, which can later be used to recover a wallet in case of theft, loss, or destruction of your Trezor device.
- Safely store your recovery shares offline. Do not take pictures of them, do not make digital copies of them, and never upload them online.
- Write your recovery shares down on paper, or use a dedicated backup solution to keep them safe.
You can print and use the Shamir Backup Shares Sheet to make the writing process more convenient and organized:
The recovery shares will only be presented once, so pay close attention to every word and make sure you write them down correctly and in the right order.
Creating a new wallet with Shamir backup
- Start up Trezor Suite and connect your Trezor Model T or Trezor Safe 3
- Following the initial Firmware check / installation, in the Wallet step choose 'Create new wallet':
- Then choose 'Advanced Shamir Backup':
- You'll then need to confirm this action using your Trezor, for example on the Model T choose Create wallet:
- Then click on 'Create backup' in Trezor Suite:
- In the next window, read and confirm that you've understood the instructions by clicking the three boxes, then select Begin backup:
- Then set the number of recovery shares, for example on the Trezor Model T press 'Continue':
- Set the number of recovery shares by using the plus (+) and minus (-) buttons on your Trezor. Once you are happy with your choice, press Continue:
- You Trezor will then display confirmation that you've set the desired number of shares:
- Press Continue to proceed with setting the threshold, again using the plus (+) and minus (-) signs to change the value:
- Once you've set the threshold value, press Continue. Your Trezor will then display confirmation that the threshold value has been set:
- Press Continue and proceed with writing down all of the recovery shares. Before your Trezor displays the word lists, you must confirm that you understand you should never make a digital copy of your recovery shares:
- Your Trezor will then display the words comprising your recovery shares. Please record these with the correct spellings and in the correct order:
- Once you have made an offline copy of your recovery shares, your Trezor will show confirmation that the backup process was successful:
You can then proceed with the remaining steps of the initialization procedure for your Trezor Model T or Trezor Safe 3.
For more information explaining Shamir backup and how to use it on the Trezor, you can read the article What is Shamir backup? and check out the following video: