Recover Trezor one wallet

[cryptown]

My friend bought a trezor one in 2017 and got some etheruem in the wallet. after a while trezor asked him to update trezor, after he updated trezor, he lost his wallet balance and needed to recover wallet, but he does not have mnemonic seed, instead he has 64 hex character. he claims when he backup trezor, it shown these 64 characters.

I tried to recover wallet with those characters and bip39-standalone Mnemonic Code Converter tools (downloaded from iancoleman.io/bip39), i entered 64 hex character as Entropy, but there was no balance in first 10 addresses that created by tools (supposed if there are any balance, it should be in first ones).

I searched net but there was no description about recovery with 64 hex character or why trezor did not give mnemonic seed, but found noting.

Am i missing something? is there anything to do?

[Charles-Tim]

You are really getting it wrong, Trezor will only generate the mnemonic (seed phrase) in which your friend supposed to have its backup offline for safety, Trezor will never generate you private key directly, neither can you import private key into Trezor. If true your friend is using Trezor, he will have a seed phrase he will use for the wallet recovery.

[TryNinja]

I believe he may be talking about the bootloader_hash which appers on the first boot[1]. The backup seed will always be a list of words and without it, you can't recover your wallet. I don't think there is anything he can do.

[1] https://www.reddit.com/r/TREZOR/comments/79t342/how_to_check_that_trezor_is_the_original_hardware/

[cryptown]

I believe he may be talking about the bootloader_hash which appers on the first boot[1]. The backup seed will always be a list of words and without it, you can't recover your wallet. I don't think there is anything he can do.

[1] https://www.reddit.com/r/TREZOR/comments/79t342/how_to_check_that_trezor_is_the_original_hardware/

Your right. that should be bootloader hash.

and he lost his balance forever.

[Lucius]

I don’t understand how someone can not do the most important thing when it comes to any non-custodial crypto wallet, and that is to be sure to make a backup? I've never had a Trezor, but I know Ledger warns about that in the instructions that come with the device, and backup is also an integral part of the first setup - it's pretty hard to ignore all those warnings.

I hope the loss isn’t too big, but I’ve looked at what the price of ETH was during 2017 - and it ranges from $8 at the beginning of the year, all the way up to over $800 at the end of the year.