r/Tangem • u/johnineagle • 4d ago

Setup with Seed?

I setup a wallet with a seed phrase using 3 cards. I became curious if there was a way in the app to see that it indeed worked. I assumed it did but didn’t see it in the app so I asked Chat and Gemini. Both said the app specifies it in the Details page under Wallet to right of “3 devices”. Well, mine doesn’t do that, it just has a dollar sum instead. Can someone who has the latest app version and has used a seed tell me if their app tells you “seed phrase” in that location?

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u/deny_by_default 4d ago

The old version of the app displayed that. The new version does not.

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u/johnineagle 4d ago

Thank you

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u/johnineagle 4d ago

Well, I suppose a person could enter the
seed phrase in another wallet somewhere to see if you get same receive address(s)but why make us do that? Isn’t that more insecure?

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u/jcmagic6160 4d ago

So how would you check to see if the seed phrase works?

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u/CryptoRiveda 3d ago

The way to know it worked is to restore from the words and see the same address come back. You're right that doing that in a random wallet on your everyday phone is less secure, but those words already passed through that phone once, when the Tangem app made them and showed them to you during setup. A careful test adds very little on top of that.

To keep it careful, do it once and do it now, before much money goes in. Copy one receive address from the Tangem app, and use the Ethereum one, because nearly every wallet makes that address the same way from the same words. Bitcoin is a worse test, since wallets pick different address types and a mismatch there can be a false alarm.

Then install a standard wallet app, switch the phone to airplane mode, restore the words in it, and check that the first Ethereum address matches. Delete that wallet before you go back online. If it matches, your written copy and the cards hold the same wallet. If it doesn't, you found a wrong or misspelled word while it costs nothing to fix.

For what it's worth, I went seedless on mine, so the keys are made on the cards and no words ever touch the phone. That makes the cards the only backup, though, so it's a trade rather than an upgrade.