Hi,
After years of it working, suddenly my Trezor One is not recognized on Windows or Linux versions of Trezor Suite. The numerical code display to enter the password does not populate on the Trezor One. I have tried the latest version of Trezor Suite, and older versions, and none of them work after many attempts, and multiple USB ports. I don’t see the Trezor One recognized in Task Manager in Windows. I am wondering what steps to take going forward… Thanks.
After two weeks, I am still having this problem. Who do I contact to find out more? I can’t even reset the Trezor from seed because I can’t even see he numerical pad to enter my password.
I’m having this issue with my Trezor one as well
However, my Trezor One is recognized on my PC when I look in Device Manager.
I’ve attempting the following for troubleshooting:
The weird thing is that I was able to connect successfully and put funds into the account a couple months ago, unsure as to why it suddenly stops recognizing the device.
It is a simple electronic device that does not promise to work indefinitely.
Try also to clear all Trezor Suite cache/settings folder manually on your PC.
C:\Users\YOURUSERNAME\AppData\Roaming\ @trezor\
Unfortunately that folder does not exist.
Although now I’m going to do a clean install with all things Trezor deleted
Thanks for the reply.
I did delete the cache, but that did not work.
The Trezor also has the same problem on Linux, even when it has never been connected to that software before. So that is not the problem.
It is not that the Trezor does not work at all. When I plug it in to my computer I see a Trezor logo with nothing filled in between the lines of the Trezor lock logo, and then after a second or so it reverts to the normal Trezor logo. It never shows the keypad.
Is there a Python workaround to this? Can I view the coins without using Suite? Please let me know. A Trezor is only as good as its software, and so all of this is a very big deal…
have you tried different cables?
what this looks like to me is that the Trezor is getting power (screen comes up) but not data (not visible in device manager).
so either your cable is charging-only, or one of the data lines died, or possibly there’s a bad connection inside Trezor’s port. using a different cable may help here.
if it’s a problem in the port in Trezor, you could break the case and solder on a new port, but if that’s the case, just get yourself a new unit (or a Safe 3)
Great. Thanks! The Problem was the cable. It is the same cable that came with the Trezor and it always worked, and so I was not thinking that was the problem, but it was. Fortunately, I had a similar cable lying around to try. I better stock up. Is the USB-C to USB-A cable or a USB-C to micro?
Also, I had a chance to begin learning Trezorctl commands. Is it true that accessing the wallets this way is not affected by Trezor Suite upgrades/changes, only firmware upgrades?
There’s a USB-micro port on the Trezor side.
For the other end, it depends what you have on your computer. The original cable is USB-A to USB-micro. But you can use USB-C to USB-micro as well, if you have USB-C ports on your computer (or phone 
)
That’s a very strange way to put it.
Yes, trezorctl does not care about Suite and it will work even if you don’t have Suite at all. (Though on Windows, you will need either Trezor Suite or Trezor Bridge. That, or manually install libusb, but that’s rather technically involved so we don’t recommend that to regular users.)
Buuut “accessing the wallets” is not really what trezorctl was built to do. It has no blockchain interaction capabilities. You can’t query balances; the only way to submit transactions is to construct them by hand; you have to know a thing or two about derivation paths.