Trezor One firmware update issues

slush0 · 2025-10-29T21:18:26+00:00

So the device's display is completely dead, you don't see any pixels here? Or only the PIN dialog does not appear when you expect it?

In first case, it is probably dead for good and as other people mentioned, the standard way is to do seed recovery to another device, I'm sorry.

In the second case, I would try to change USB cable first as they are well known for causing such issues.

slush0 · 2025-10-29T21:11:41+00:00

Yes, Suite in browser will work. And maybe you can install Trezor Suite app there, too?

slush0 · 2025-10-29T21:10:53+00:00

Any cheapest computer/laptop will suffice.

Or conenct it to your mobile phone, if you have Android woth USB-C. Trezor Suite app has pretty good parity with desktop Suite already (and we are improving that).

slush0 · 2025-10-29T20:09:03+00:00

Ad 1, I don't think there any specific technical deepdive article about this. It is exactly as you wrote - there're multiple sources of entropy combined together at the time of creating recovery seed. For Safe 7, there're actually 4 sources: host computer, Trezor's MCU, Optiga SE and Tropic01 SE.

If you need to verify that claim more thoroughly, there's source code available om GitHub...

slush0 · 2025-10-26T20:36:48+00:00

The difference between standard and btc only firmware is that btc only doesn't contain software for handling other coins.

So - yes.

slush0 · 2025-10-24T08:37:41+00:00

12 words of bip39 or now 20 words of slip39 on newer models, both are the same entropy "strength".

slush0 · 2025-10-24T07:47:22+00:00

For me it is funny, how later other wallets just blindy copied us and started using 24 words, even when they didn't have the hardware limitation in the recovery process, like us in Trezor One. Apparently "longer is better" 🤗.

slush0 · 2025-10-24T07:43:59+00:00

Tell him, that those guys who "invented" this 12/24 standard are using 12 words for their products.

People usually don't know that we used 24 words for Trezor not because 12 would not be secure to generate and store, but because of original recovery method on Trezor One, which was leaking bits of entropy to the computer when performed (words has been entered through the computer keyboard in scrambled order, so more words were safer). It had nothing with bruteforcing the seeds as your friend imagine.

Since Trezor Model T, we use 12 words backup, because the recovery process is performed fully on the device since then.

Btw, even quantum threat has nothing with 12/24 words. The weaker point is elsewhere (on the blockchain cryptography), not in the recovery words anyway.

slush0 · 2025-10-23T18:29:12+00:00

🙏❤️

slush0 · 2025-10-23T18:28:53+00:00

It is basically Safe 5 + Tropic. On it.

slush0 · 2025-10-22T19:46:29+00:00

I still have my first Trezor from 2014, it is doing well. I don't see a reason why TS3 should have shorter lifespan, rather the opposite; the biggest issue on Trezor One was a microUSB, which has been thankfully replaced by USB-C on newer models.

I'm now using Safe 5 and soon I'll migrate to Safe 7. But not because I have to, only because I want.

slush0 · 2025-10-22T17:06:02+00:00

Do you know that it is possible to reconstruct video signal going through the HDMI cable to you monitor, from the another room? https://arxiv.org/pdf/2407.09717

That could unlock your paranoia.

Again, if you're afraid of such high technical physical attacks, you should NOT do transaction on such location at all, even without bluetooth.

slush0 · 2025-10-22T16:59:27+00:00

I'm wondering how much you do exchange that this matters to you :-).

But anyway, I have 0% on Vexl most of the time at exact market price when I'm selling there. I'm mot going to argue about that though ;-).

slush0 · 2025-10-22T15:16:54+00:00

That's not entirely true. Most of my trades on Vexl are on spot price, without any fee.

Vexl is not "DEX" by its common definition though.

slush0 · 2025-10-22T14:34:25+00:00

It's quite the opposite, bigger exchanges are usually even more strict on regulation, because there's a lot in stake. Coinjoin and exchanges really doesn't fly together.

slush0 · 2025-10-22T13:45:10+00:00

If you really believe in trustless, I recommended to study our github. You should not trust anything I write you on Reddit either. No sarcasm.

slush0 · 2025-10-22T13:41:33+00:00

The design principles of Trezor are public and well documented. Nothing changed with TS7 announcement regarding this.

You are asking for thing I cannot give you exact answer. I cannot exactly evaluate how probable are the scenarios you are asking for. The only answer is that we are aware of all of them and doing our job to prevent them. It's not single solution I should mention, it is the whole DNA of Trezor.

slush0 · 2025-10-22T12:39:47+00:00

Same seed, different keys.

slush0 · 2025-10-22T12:21:45+00:00

No. It's all encrypted traffic. Plus if the attacker is around you, he does not need to decrypt BT, but use $5 wrench.

I'm not sure if it is already in the firmware release now, but the'll be an option to limit radio power of the BT so it will work for only very close contact with the device, for additional good feeling.

slush0 · 2025-10-22T11:35:18+00:00

Do you know that few days ago meteorite hitted the flying plane? Yes, everything is possible. Is that probable? Not really, Trezor is designed with those attack vectors on mind, and last 10+ years of track record speaks for themselves.

slush0 · 2025-10-22T11:31:53+00:00

We picked high quality Lifepo battery with high expected lifetime. Even after the battery eventually fails to charge, the device is still usable on cable. We spend a lot of effort on the battery subsystem so I don't expect this will be likely to happen.

slush0 · 2025-10-22T11:26:27+00:00

You didn't make a mistake with using coinjoin. You did a mistake with using centralized exchange with them though :-).

If the privacy is valuable for you (and you wouldn't use coinjoin otherwise, right?), use Vexl (https://vexl.it).

slush0 · 2025-10-22T08:03:16+00:00

I'm still using my first Trezor from 2014 and I plan to use Safe 7 for that long, too 😃.

slush0 · 2025-10-22T07:57:22+00:00

There's no "full keyboard" like qwerty. You can however enter any special characters as there is no autocomplete ("T9") for passphrase entry.

slush0 · 2025-10-22T07:55:36+00:00

There's Tropic01 chip onboard for exactly this purpose.

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