Fix connection issues

• Right-click on Ledger Live to run it as Administrator.
• Error code 38
  1. Navigate to Windows > Settings > Update and Security > Troubleshoot > Run the troubleshooter
  2. The troubleshooter will detect USB Composite Device has error, possibly multiple times. Select one and continue.
  3. Select Apply this fix
  4. Repeat for other USB Composite Device has error errors. Then restart the computer.
• Update USB input device drivers
  1. Open Devices and Printers from Control Panel.
  2. Double-click Nano S and open the Hardware tab.
  3. Select USB Input Device and click Properties.
  4. Click Change Settings.
  5. Click the Driver tab.
  6. Click Update driver and select automatic driver selection.
  7. Repeat this for both USB Input Devices.

• If it still does not work, please try on a Mac to verify that your Ledger Nano S is working properly.

If you're having connection issues on a Mac, you can try giving Ledger Live full disk access:

1. Open System Preferences.
2. Go to Security & Privacy.
3. In the Privacy tab, add Ledger Live to the Full Disk Access list.

On Linux you need to create a set of udev rules to allow device access. Refer to the Chrome USB API documentation for details. Please follow the instructions below.

1. Setup

• Check if the plugdev group exists by entering the command:
  

  cat /etc/group | grep plugdev

• Follow the steps below if the previous command did not return a result
  1. Create the plugdev group:
     

     sudo groupadd plugdev

  2. Check if you are in the group plugdev with the command:

     groups

  3. If the output does not contain plugdev, you are not in the plugdev group. Enter the command:

     sudo gpasswd -a <user> plugdev

     Note: replace <user> by your username, e.g for user "mike", it would be: sudo gpasswd -a mike plugdev.

  4. Logout and login for the change to take effect. To verify you are now in the plugdev group, enter:

     groups

     and search for a plugdev occurrence. If it's not there, you've missed a step and should restart from step 1.

2. Add the udev rules

1. Enter the following command to automatically add the rules and reload udev:

   wget -q -O - https://raw.githubusercontent.com/LedgerHQ/udev-rules/master/add_udev_rules.sh | sudo bash

2. Retry connecting your Ledger Nano S with Ledger Live.
   
   If it's still not working, continue to step 3: troubleshooting.

3. Troubleshooting

Try each of the following three options. 

• Option 1
  Edit the file /etc/udev/rules.d/20-hw1.rules file by adding the OWNER="<user>" parameter to each line, where <user> is your Linux user name.
  Then reload the rules as follows:
  

  udevadm trigger
  udevadm control --reload-rules

  Retry the connection with Ledger Live. If it does not work, try the next option.
• Option 2
  Edit the /etc/udev/rules.d/20-hw1.rules file and add the following lines:
  

  KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0660", GROUP="plugdev", ATTRS{idVendor}=="2c97"
  
  KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0660", GROUP="plugdev", ATTRS{idVendor}=="2581"

  Then reload the rules:
  

  udevadm trigger
  udevadm control --reload-rules

  Retry connecting with Ledger Live. If it does not work yet, try the last option.
• Option 3
  If you are on Arch Linux, you can try the following rules:

  /etc/udev/rules.d/20-hw1.rules
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="1b7c", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="2b7c", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="3b7c", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="4b7c", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="1807", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2581", ATTRS{idProduct}=="1808", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0000", MODE="0660", TAG+="uaccess", TAG+="udev-acl"
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0001", MODE="0660", TAG+="uaccess", TAG+="udev-acl”
  
  SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0004", MODE="0660", TAG+="uaccess", TAG+="udev-acl"

• Then reload the rules again and retry the connection with Ledger Live:
  

  udevadm trigger
  udevadm control --reload-rules

  
  Still not working after following all the steps correctly? Please contact Ledger Support.