Trezor Safe 5

Choose Universal if you want Ethereum or other supported crypto alongside Bitcoin, or want the ordinary option to change firmware type in Suite. The dedicated Bitcoin-only edition suits a deliberately Bitcoin-only setup.

On Universal hardware, Suite lets you switch between Universal and Bitcoin-only firmware. Bitcoin-only firmware deactivates other networks in Suite. The dedicated Bitcoin-only device does not have the ordinary Switch to Universal button. Trezor documents an advanced manual installation of official Universal firmware for that device, but it can erase the wallet from the device. Choose the edition you expect to use rather than planning on that installation.

For your crypto, match the coin or token, network and app to Safe 5 in Trezor’s support directory. Universal does not mean that every asset or task works in Suite; some need a compatible third-party app.

Safe 5 can also act as a security key with FIDO2 or U2F. FIDO2 supports passwordless sign-in on services that offer it; U2F adds a second factor alongside your password. Both require Universal firmware and are unavailable with Bitcoin-only firmware, even on a Universal device.

The PIN unlocks this device. An optional passphrase is an additional secret used with the wallet backup to open a separate wallet. The exact spelling matters: a different passphrase opens a different wallet. It cannot be reset if forgotten.

Safe 5 lets you enter the passphrase on its touchscreen; Suite also permits entry on the connected computer or phone. If you use it, keep a secure record of the exact passphrase as well as the backup words, and include both in your plan for recovering wallet access.

The microSD slot serves an optional advanced unlock-protection feature. When enabled, the paired card holds an extra secret needed alongside the PIN to unlock that device. It does not store your recovery words or replace the wallet backup. Ordinary use does not require a microSD card.

A new wallet currently starts with a complete 20-word backup in the SLIP39 format. This is called a single-share backup: that one recorded word list is enough to restore the wallet. An optional multi-share backup creates several separate word lists, and you choose how many are required for recovery. You need that number of matching shares; cutting an ordinary recovery phrase into pieces does not create a multi-share backup.

You can also create or restore a 12- or 24-word phrase in the BIP39 format. If you already hold an 18-word BIP39 backup, we have not confirmed Safe 5 restoration for it; establish that support with Trezor before choosing it as your replacement.

After device loss, use a replacement that accepts your actual backup format, plus the exact passphrase if you used one. Safe 5’s recovery starts in Suite, and you enter the backup words on the device’s touchscreen. A PIN or a new microSD card cannot replace missing recovery information.

While your wallet still works, Safe 5’s Check backup feature can test the recorded words by simulating recovery without replacing the wallet. Follow its device prompts and the maintained procedure below. This is a useful check before you need to depend on the backup after a failure.

Suite shows when a device firmware update is available. Safe 5’s documented routine uses USB with a computer or Android phone. Have your backup and any passphrase available first: a failed update or lost connection can leave you needing to restore the wallet.

Start the update in Suite, review and confirm the device prompts, and keep the connection in place until installation finishes. Routine updates and manually installing Universal firmware on a dedicated Bitcoin-only device are different procedures. Use the maintained instructions for the task you are actually doing.