Knowledge base | Ledger

The firmware update is not successful (Nano and HW1)

This section applies to the following products:

  • Ledger Nano (not Nano S)
  • Ledger HW1

Generaly speaking, it will always manage to finalize the update. You may however encounter some glitches: do not hesitate to restart the process, or to plug/unplug the Nano 10 times if you are asked to. Even if it fails in the middle, or if you unplug the Nano by accident while flashing the firmware, you'll be able to recover.

On Linux, you may be stuck with a not recognized device: make sure that you do have added the line

SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="3b7c", MODE="0660", GROUP="plugdev"

in the file

/etc/udev/rules.d/20-hw1.rules

and that you executed:

sudo udevadm control --reload-rules

On some instances of Windows 7, the Nano is not recognized anymor in the middle of the update. We are looking for a fix, but right now if you are in this situation you must finish the update on another computer (Mac, Linux, Windows 8...). Once the update is done, your Nano will successfully be recognized on Windows 7.